Document:

Summary of Director Compensation Arrangements

 EXHIBIT 10.33 
 Summary of Director Compensation Arrangements 
 We currently pay each director who is not employed by
us or any of our affiliates (i.e., all of our directors except for our Chairman, Frank F. Khulusi) a quarterly retainer of $6,000, $2,500 for each regular board meeting attended in person or telephonically, $1,000 for each special board meeting
attended in person or telephonically, $1,000 for each committee meeting attended in person, and $500 for each committee meeting attended telephonically. We also pay the chairperson of the Audit Committee of our Board of Directors an additional
annual retainer of $12,500 (paid quarterly) for serving in such capacity. Directors who are employed by us or any of our affiliates are not paid any additional compensation for their service on our Board of Directors. We reimburse each of our
directors for reasonable out-of-pocket expenses that they incur in connection with attending board or committee meetings. We have entered into indemnification agreements, a form of which is attached as an exhibit to the accompanying Annual Report on
Form 10-K, with each of our directors. 
 Our directors are also eligible to participate in our 1994 Stock Incentive Plan, as amended, which
is administered by our Compensation Committee under authority delegated by our Board of Directors. The terms and conditions of option grants to our non-employee directors under our 1994 Stock Incentive Plan, as amended, are determined in the
discretion of our Compensation Committee, and must be consistent with the terms of the 1994 Stock Incentive Plan, as amended, which is filed as an exhibit to the accompanying Annual Report on Form 10-K. 
 The compensation arrangements we have with our directors are reviewed and may be modified from time to time by our Board of Directors.Term Note

 Exhibit 10.4 
 TERM NOTE 
  

			
	 $10,000,000
	  	January 31, 2007

 On or before the Maturity Date, FOR VALUE RECEIVED, Quantum Fuel Systems Technologies Worldwide,
Inc., a Delaware corporation (the “Company”), promises to pay to the order of WB QT, LLC, a Delaware limited liability company (“Lender”) at Minneapolis, Minnesota, care of the Agent in lawful money of the United
States of America so much of the sum of Ten Million Dollars ($10,000,000), as then be outstanding hereunder pursuant to the Credit Agreement dated as of January 31, 2007 made by and among the Company and certain lenders signatory thereto,
including the Lender, and WB QT, LLC as Agent for such lenders, as the same may be amended or otherwise modified from time to time (“Credit Agreement”), together with interest thereon as hereinafter set forth. 
 The Term Advance made hereunder shall bear interest at the interest rate from time to time applicable thereto under the Credit Agreement or as otherwise
determined thereunder, and interest shall be computed, assessed and payable as set forth in the Credit Agreement. 
 This Note is a Term Note
under Credit Agreement. This Note evidences borrowings under, is subject to, is secured in accordance with, and may be accelerated or prepaid under, the terms of the Credit Agreement to which reference is hereby made. Capitalized terms used herein,
except as defined to the contrary, shall have the meanings given them in the Credit Agreement. 
 This Note shall be interpreted and the
rights of the parties hereunder shall be determined under the laws of, and enforceable in, the State of Minnesota. 
 Company hereby waives
presentment for payment, demand, protest and notice of dishonor and nonpayment of this Note and agrees that no obligation hereunder shall be discharged by reason of any extension, indulgence, release, or forbearance granted by any holder of this
Note to any party now or hereafter liable hereon or any present or subsequent owner of any property, real or personal, which is now or hereafter security for this Note. 
 Nothing herein shall limit any right granted Lender by any other instrument or by law. 
 [Signature Follows
On Succeeding Page] 

 QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC. 
  

			
	By:	 	 /s/ Kenneth R. Lombardo

	Name:	 	Kenneth R. Lombardo
	Its:	 	General Counsel

 [Signature page to Term Note] 
  

 2Revolving Credit Note

 Exhibit 10.5 
 REVOLVING CREDIT NOTE 
  

			
	 $20,637,500
	  	January 31, 2007

 On or before the Maturity Date, FOR VALUE RECEIVED, Quantum Fuel Systems Technologies Worldwide,
Inc., a Delaware corporation (the “Company”), promises to pay to the order of WB QT, LLC, a Delaware limited liability company (“Lender”) at Minneapolis, Minnesota, care of the Agent in lawful money of the United
States of America so much of the sum of Twenty Million Six Hundred Thirty-Seven Thousand Five Hundred Dollars ($20,637,500), as may from time to time have been advanced by Lender to the Company and then be outstanding hereunder pursuant to the
Credit Agreement dated as of January 31, 2007 made by and among the Company and certain lenders signatory thereto, including the Lender, and WB QT, LLC as Agent for such lenders, as the same may be amended or otherwise modified from time to
time (“Credit Agreement”), together with interest thereon as hereinafter set forth. 
 Each of the Revolving Credit Advances
made hereunder shall bear interest at the interest rate from time to time applicable thereto under the Credit Agreement or as otherwise determined thereunder, and interest shall be computed, assessed and payable as set forth in the Credit Agreement.

 This Note is a Revolving Credit Note under which Revolving Credit Advances, repayments and readvances may be made from time to time, by
Lender, but only in accordance with the terms and conditions of the Credit Agreement. This Note evidences borrowings under, is subject to, is secured in accordance with, and may be accelerated or prepaid under, the terms of the Credit Agreement to
which reference is hereby made. Capitalized terms used herein, except as defined to the contrary, shall have the meanings given them in the Credit Agreement. 
 This Note shall be interpreted and the rights of the parties hereunder shall be determined under the laws of, and enforceable in, the State of Minnesota. 
 Company hereby waives presentment for payment, demand, protest and notice of dishonor and nonpayment of this Note and agrees that no obligation hereunder
shall be discharged by reason of any extension, indulgence, release, or forbearance granted by any holder of this Note to any party now or hereafter liable hereon or any present or subsequent owner of any property, real or personal, which is now or
hereafter security for this Note. 
 Nothing herein shall limit any right granted Lender by any other instrument or by law. 
 [Signature Follows On Succeeding Page] 

 QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE, INC. 
  

			
	 By:
	 	 /s/ Kenneth R. Lombardo

	 Name:
	 	Kenneth R. Lombardo
	 Its:
	 	General Counsel

 [Signature page to Revolving Credit Note] 
  

 2Guaranty

 Exhibit 10.6 
 EXECUTION 
 COPY 
 GUARANTY 
 THIS GUARANTY, dated as of January 31, 2007, is made and given by the
undersigned (each, a “Guarantor” and collectively, the “Guarantors”), in favor of WB QT, LLC, a Delaware limited liability company, in its capacity as Agent (in such capacity, the “Agent”), for the
“Lenders” as defined in and from time to time party to the Credit Agreement (defined below). 
 RECITALS 
 A. Quantum Fuel Systems Technologies Worldwide, Inc., a Delaware corporation (the “Borrower”), the Agent and the Lenders have entered
into a Credit Agreement dated as of January 31, 2007 (as the same may hereafter be amended, restated, or otherwise modified from time to time, the “Credit Agreement”) pursuant to which the Lenders have agreed to extend to the
Borrower certain credit accommodations. 
 B. It is a condition precedent to the obligation of the Lenders to extend credit accommodations
pursuant to the terms of the Credit Agreement that this Guaranty be executed and delivered by each Guarantor. 
 C. Each Guarantor is a
Subsidiary (as defined in the Credit Agreement) of the Borrower. 
 D. Each Guarantor expects to derive benefits from the extension of credit
accommodations to the Borrower by the Lenders and each Guarantor finds it advantageous, desirable and in its best interests to execute and deliver this Guaranty to the Agent. 
 NOW, THEREFORE, In consideration of the credit accommodations to be extended to the Borrower and for other good and valuable consideration, each
Guarantor hereby covenants and agrees with the Agent for the benefit of the Agent and the Lenders as follows: 
 Section 1. Defined
Terms. As used in this Guaranty, the following terms shall have the meaning indicated: 
 “Agent” shall have the meaning
indicated in the opening paragraph hereof. 
 “Borrower” shall have the meaning indicated in Recital A. 
 “Credit Agreement” shall have the meaning indicated in Recital A. 
 “Guarantor” shall have the meaning indicated in the opening paragraph hereof. 
 “Lenders” shall have the meaning indicated in the opening paragraph hereof. 
 “Obligations” shall mean all indebtedness, liabilities and obligations of each Guarantor to the Agent or any Lender of every kind,
nature or description under the Credit Agreement, 

 
including the Borrower’s obligation on any promissory note or notes under the Credit Agreement and any note or notes hereafter issued in substitution or
replacement thereof, and in all of the foregoing cases whether due or to become due, and whether now existing or hereafter arising or incurred 
 “Person” shall mean any individual, corporation, partnership, limited partnership, limited liability company, joint venture, firm, association, trust, unincorporated organization, government or governmental agency or
political subdivision or any other entity, whether acting in an individual, fiduciary or other capacity. 
 Section 2. The
Guaranty. Subject always to the following Section 3, each Guarantor, jointly and severally with the other Guarantors, hereby absolutely and unconditionally guarantees to the Agent for the ratable benefit of the Lenders the payment when due
(whether at a stated maturity or earlier by reason of acceleration or otherwise) and performance of the Obligations. 
 Section 3.
Limitation; Insolvency Laws. As used in this Section: (a) the term “Applicable Insolvency Laws” means the laws of the United States of America or of any State, province, nation or other governmental unit relating to bankruptcy,
reorganization, arrangement, adjustment of debts, relief of debtors, dissolution, insolvency, fraudulent transfers or conveyances or other similar laws (including, without limitation, 11 U. S. C. §547, §548, §550 and other
“avoidance” provisions of Title 11 of the United Stated Code) as applicable in any proceeding in which the validity and/or enforceability of this Guaranty or any Specified Lien is in issue; and (b) “Specified Lien” means any
security interest, mortgage, lien or encumbrance securing this Guaranty, in whole or in part. Notwithstanding any other provision of this Guaranty, if, in any proceeding, a court of competent jurisdiction determines that this Guaranty or any
Specified Lien would, but for the operation of this Section, be subject to avoidance and/or recovery or be unenforceable by reason of Applicable Insolvency Laws, this Guaranty and each such Specified Lien shall be valid and enforceable only to the
maximum extent that would not cause this Guaranty or such Specified Lien to be subject to avoidance, recovery or unenforceability. To the extent that any payment to, or realization by, the Agent or any Lender on the guaranteed Obligations exceeds
the limitations of this Section and is otherwise subject to avoidance and recovery in any such proceeding, the amount subject to avoidance shall in all events be limited to the amount by which such actual payment or realization exceeds such
limitation, and this Guaranty as limited shall in all events remain in full force and effect and be fully enforceable against the Guarantors. This Section is intended solely to reserve the rights of the Agent hereunder against the Guarantors in such
proceeding to the maximum extent permitted by Applicable Insolvency Laws and neither the Guarantors, the Borrower, any other guarantor of the Obligations nor any Person shall have any right, claim or defense under this Section that would not
otherwise be available under Applicable Insolvency Laws in such proceeding. 
 Section 4. Continuing Guaranty. This Guaranty is
an absolute, unconditional and continuing guaranty of payment and performance of the Obligations, and the obligations of any Guarantor hereunder shall not be released, in whole or in part, by any action or thing which might, but for this provision
of this Guaranty, be deemed a legal or equitable discharge of a surety or guarantor, other than irrevocable payment and performance in full of the Obligations. 

  

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No notice of the Obligations to which this Guaranty may apply, or of any renewal or extension thereof need be given to any Guarantor and none of the
foregoing acts shall release any Guarantor from liability hereunder. Each Guarantor hereby expressly waives (a) demand of payment, presentment, protest, notice of dishonor, nonpayment or nonperformance on any and all forms of the Obligations;
(b) notice of acceptance of this Guaranty and notice of any liability to which it may apply; (c) all other notices and demands of any kind and description relating to the Obligations now or hereafter provided for by any agreement, statute,
law, rule or regulation; and (d) any and all defenses of the Borrower pertaining to the Obligations except for the defense of discharge by payment. No Guarantor shall be exonerated with respect to such Guarantor’s liabilities under this
Guaranty by any act or thing except irrevocable payment and performance of the Obligations, it being the purpose and intent of this Guaranty that the Obligations constitute the direct and primary obligations of the Guarantors and that the covenants,
agreements and all obligations of the Guarantors hereunder be absolute, unconditional and irrevocable. The Guarantors shall be and remain liable for any deficiency remaining after foreclosure of any mortgage, deed of trust or security agreement
securing all or any part of the Obligations, whether or not the liability of the Borrower or any other Person for such deficiency is discharged pursuant to statute, judicial decision or otherwise. The acceptance of this Guaranty by the Agent is not
intended and does not release any liability previously existing of any guarantor or surety of any indebtedness of the Borrower to the Agent or any Lender. 
 Section 5. Other Transactions. The Agent is expressly authorized (a) to exchange, surrender or release with or without consideration any or all collateral and security which may at any time be placed
with it by the Borrower or by any other Person, or to forward or deliver any or all such collateral and security directly to the Borrower for collection and remittance or for credit, or to collect the same in any other manner without notice to any
Guarantor and (b) to amend, modify, extend or supplement the Credit Agreement, any note or other instrument evidencing the Obligations or any part thereof and any other agreement with respect to the Obligations, waive compliance by the Borrower
or any other Person with the respective terms thereof and settle or compromise any of the Obligations without notice to any Guarantor and without in any manner affecting the absolute liabilities of the Guarantors hereunder. No invalidity,
irregularity or unenforceability of all or any part of the Obligations or of any security therefor or other recourse with respect thereto shall affect, impair or be a defense to this Guaranty. The liabilities of a Guarantor hereunder shall not be
affected or impaired by any failure, delay, neglect or omission on the part of the Agent to realize upon any of the Obligations of the Borrower to the Agent or any Lender, or upon any collateral or security for any or all of the Obligations, nor by
the taking by the Agent of (or the failure to take) any other guaranty or guaranties to secure the Obligations, nor by the taking by the Agent of (or the failure to take or the failure to perfect its security interest in or other lien on) collateral
or security of any kind. No act or omission of the Agent or any Lender, whether or not such action or failure to act varies or increases the risk of, or affects the rights or remedies of a Guarantor shall affect or impair the obligations of such
Guarantor hereunder. Each Guarantor acknowledges that this Guaranty is in effect and binding without reference to whether this Guaranty is signed by any other Person or Persons, that possession of this Guaranty by the Agent shall be conclusive
evidence of due delivery hereof by such Guarantor and that this Guaranty shall continue in full force and effect, both as to the Obligations then existing and/or thereafter created, notwithstanding the release of or extension of time to any other
guarantor of the Obligations or any part thereof. 
  

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 Section 6. Actions Not Required. Each Guarantor hereby waives any and all right to cause a
marshalling of the assets of the Borrower or any other action by any court or other governmental body with respect thereto or to cause the Agent to proceed against any security for the Obligations or any other recourse which the Agent may have with
respect thereto and further waives any and all requirements that the Agent or any Lender institute any action or proceeding at law or in equity, or obtain any judgment, against the Borrower or any other Person, or with respect to any collateral
security for the Obligations, as a condition precedent to making demand on or bringing an action or obtaining and/or enforcing a judgment against, such Guarantor upon this Guaranty. Each Guarantor further acknowledges that time is of the essence
with respect to such Guarantor’s obligations under this Guaranty. Any remedy or right hereby granted which shall be found to be unenforceable as to any Person or under any circumstance, for any reason, shall in no way limit or prevent the
enforcement of such remedy or right as to any other Person or circumstance, nor shall such unenforceability limit or prevent enforcement of any other remedy or right hereby granted. 
 Section 7. No Subrogation. Notwithstanding any payment or payments made by a Guarantor hereunder, each Guarantor waives all rights of
subrogation to any of the rights of the Agent or any Lender against the Borrower or any other Person liable for payment of any of the Obligations or any collateral security or guaranty or right of offset held by the Agent or any Lender for the
payment of the Obligations, and each Guarantor waives all rights to seek any recourse to or contribution or reimbursement from the Borrower or any other Person liable for payment of any of the Obligations in respect of payments made by such
Guarantor hereunder. 
 Section 8. Application of Payments. Any and all payments upon the Obligations made by the Guarantors or
by any other Person, and/or the proceeds of any or all collateral or security for any of the Obligations, may be applied by the Agent on such items of the Obligations as the Agent may elect. 
 Section 9. Recovery of Payment. If any payment received by the Agent or a Lender and applied to the Obligations is subsequently set aside,
recovered, rescinded or required to be returned for any reason (including, without limitation, the bankruptcy, insolvency or reorganization of the Borrower or any other obligor), the Obligations to which such payment was applied shall for the
purposes of this Guaranty be deemed to have continued in existence, notwithstanding such application, and this Guaranty shall be enforceable as to such Obligations as fully as if such application had never been made. References in this Guaranty to
amounts “irrevocably paid” or to “irrevocable payment” refer to payments that cannot be set aside, recovered, rescinded or required to be returned for any reason. 
 Section 10. Borrower’s Financial Condition. Each Guarantor is familiar with the financial condition of the Borrower, and each Guarantor
has executed and delivered this Guaranty based on such Guarantor’s own judgment and not in reliance upon any statement or representation of the Agent or any Lender. The Agent shall have no obligation to provide a Guarantor with any advice
whatsoever or to inform any Guarantor at any time of the Agent’s actions, evaluations or conclusions on the financial condition or any other matter concerning the Borrower. 
  

 4 

 Section 11. Remedies. All remedies afforded to the Agent by reason of this Guaranty are
separate and cumulative remedies and it is agreed that no one of such remedies, whether or not exercised by the Agent, shall be deemed to be in exclusion of any of the other remedies available to the Agent and no one of such remedies shall in any
way limit or prejudice any other legal or equitable remedy which the Agent or a Lender may have hereunder and with respect to the Obligations. Mere delay or failure to act shall not preclude the exercise or enforcement of any rights and remedies
available to the Agent. 
 Section 12. Bankruptcy of the Borrower. Each Guarantor expressly agrees that the liabilities and
obligations of such Guarantor under this Guaranty shall not in any way be impaired or otherwise affected by the institution by or against the Borrower or any other Person of any bankruptcy, reorganization, arrangement, insolvency or liquidation
proceedings, or any other similar proceedings for relief under any bankruptcy law or similar law for the relief of debtors and that any discharge of any of the Obligations pursuant to any such bankruptcy or similar law or other law shall not
diminish, discharge or otherwise affect in any way the obligations of the Guarantors under this Guaranty, and that upon the institution of any of the above actions, such obligations shall be enforceable against each Guarantor. 
 Section 13. Costs and Expenses. Each Guarantor jointly and severally agree to pay or reimburse the Agent on demand for all out-of-pocket
expenses (including in each case all reasonable fees and expenses of counsel) incurred by the Agent arising out of or in connection with the enforcement of this Guaranty against the Guarantors or arising out of or in connection with any failure of
any Guarantor to fully and timely perform the obligations of such Guarantor hereunder. 
 Section 14. Waivers and Amendments.
This Guaranty can be waived, modified, amended, terminated or discharged only explicitly in a writing signed by the Agent. A waiver so signed shall be effective only in the specific instance and for the specific purpose given. 
 Section 15. Notices. Any notice or other communication to any party in connection with this Guaranty shall be given in accordance with the
applicable provisions of Section 11.6 of the Credit Agreement. 
 Section 16. Guarantor Acknowledgements. Each Guarantor
hereby acknowledges that (a) counsel has advised such Guarantor in the negotiation, execution and delivery of this Guaranty, (b) neither the Agent nor any Lender has any fiduciary relationship to such Guarantor the relationship being
solely that of debtor and creditor, and (c) no joint venture exists between such Guarantor and the Agent or any Lender. 
 Section 17. Joinder Agreements. Each Subsidiary of the Borrower that is required to become a party to this Guaranty pursuant to Section 5.15 of the Credit Agreement or otherwise shall become a party hereto as a Guarantor
for all purposes of this Guaranty by executing and delivering to the Agent a Joinder Agreement substantially in the form attached hereto as Exhibit  

  

 5 

 
A. Upon such execution and delivery, such party shall be as fully a party hereto as if such party were an original signatory hereof. Each Guarantor
expressly agrees that its obligations arising hereunder shall not be affected or diminished by the addition or release of any other Guarantor hereunder. 
 Section 18. Representations and Warranties. Each Guarantor hereby represents to the Agent that it is an entity organized, validly existing and in good standing in the state of its organization and has the
power and authority and the legal right to own and operate its properties and to conduct the business in which it is currently engaged. Each Guarantor further represents and warrants to the Lender that: 
 18(a) It has the power and authority and the legal right to execute and deliver, and to perform its obligations under, this Guaranty and has taken all
necessary action required by its form of organization to authorize such execution, delivery and performance. 
 18(b) This Guaranty
constitutes its legal, valid and binding obligation enforceable in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the enforcement of
creditors’ rights generally and by general equitable principles (whether enforcement is sought by proceedings in equity or at law). 
 18(c) The execution, delivery and performance of this Guaranty will not (i) violate any provision of any law, statute, rule or regulation or any order, writ, judgment, injunction, decree, determination or award of any court,
governmental agency or arbitrator presently in effect having applicability to it, (ii) violate or contravene any provision of its organizational documents, or (iii) result in a breach of or constitute a default under any indenture, loan or
credit agreement or any other agreement, lease or instrument to which it is a party or by which it or any of its properties may be bound or result in the creation of any lien thereunder. It is not in default under or in violation of any such law,
statute, rule or regulation, order, writ, judgment, injunction, decree, determination or award or any such indenture, loan or credit agreement or other agreement, lease or instrument in any case in which the consequences of such default or violation
could have a material adverse effect on its business, operations, properties, assets or condition (financial or otherwise). 
 18(d) No
order, consent, approval, license, authorization or validation of, or filing, recording or registration with, or exemption by, any governmental or public body or authority is required on its part to authorize, or is required in connection with the
execution, delivery and performance of, or the legality, validity, binding effect or enforceability of, this Guaranty. 
 18(e) There are no
actions, suits or proceedings pending or, to its knowledge, threatened against or affecting it or any of its properties before any court or arbitrator, or any governmental department, board, agency or other instrumentality which, if determined
adversely to it, would have a material adverse effect on its business, operations, property or condition (financial or otherwise) or on its ability to perform its obligations hereunder. 
  

 6 

 18(f) It expects to derive benefits from the transactions resulting in the creation of the Obligations.
The Agent may rely conclusively on the continuing warranty, hereby made, that the Guarantor continues to be benefited by the Lenders’ extension of credit accommodations to the Borrower and the Agent shall have no duty to inquire into or confirm
the receipt of any such benefits, and this Guaranty shall be effective and enforceable by the Agent without regard to the receipt, nature or value of any such benefits. 
 Section 19. Continuing Guaranty; Assignments under Credit Agreement. This Guaranty shall (a) remain in full force and effect until irrevocable payment in full of the Obligations and the expiration of
the obligations, if any, of the Agent and the Lenders to extend credit accommodations to the Borrower, (b) be binding upon each Guarantor, its successors and assigns and (c) inure to the benefit of, and be enforceable by, the Agent and its
successors, transferees, and assigns. Without limiting the generality of the foregoing clause (c), the Agent may assign or otherwise transfer all or any portion of its rights and obligations under the Credit Agreement to any other Persons to the
extent and in the manner provided in the Credit Agreement and may similarly transfer all or any portion of its rights under this Guaranty to such Persons. 
 Section 20. Reaffirmation. Each Guarantor agrees that when so requested by the Agent from time to time it will promptly execute and deliver to the Agent a written reaffirmation of this Guaranty in such
form as the Agent may require. 
 Section 21. Revocation. Notwithstanding any other provision hereof, a Guarantor may revoke this
Guaranty as to such Guarantor prospectively as to future transactions by written notice to that effect actually received by the Agent. No such revocation shall release, impair or affect in any manner any liability hereunder with respect to
Obligations created, contracted, assumed or incurred prior to receipt by the Agent of written notice of revocation, or Obligations created, contracted, assumed or incurred after receipt of such notice pursuant to any contract entered into by the
Agent or any Lender prior to receipt of such notice, or any renewals or extensions thereof, theretofore or thereafter made, or any interest accrued or accruing on such Obligations, or all other costs, expenses and attorneys’ fees arising from
such Obligations. 
 Section 22. Governing Law and Construction. THE VALIDITY, CONSTRUCTION AND ENFORCEABILITY OF THIS
GUARANTY SHALL BE GOVERNED BY THE LAWS OF THE STATE OF MINNESOTA, WITHOUT GIVING EFFECT TO CONFLICT OF LAWS PRINCIPLES THEREOF. Whenever possible, each provision of this Guaranty and any other statement, instrument or transaction contemplated
hereby or relating hereto shall be interpreted in such manner as to be effective and valid under such applicable law, but, if any provision of this Guaranty or any other statement, instrument or transaction contemplated hereby or relating hereto
shall be held to be prohibited or invalid under such applicable law, such provision shall be ineffective only to the extent of such prohibition or invalidity, without invalidating the remainder of such provision or the remaining provisions of this
Guaranty or any other statement, instrument or transaction contemplated hereby or relating hereto. 
  

 7 

 Section 23. Consent to Jurisdiction. AT THE OPTION OF THE AGENT, THIS GUARANTY MAY
BE ENFORCED IN ANY FEDERAL COURT OR MINNESOTA STATE COURT SITTING IN MINNEAPOLIS, MINNESOTA; AND EACH GUARANTOR CONSENTS TO THE JURISDICTION AND VENUE OF ANY SUCH COURT AND WAIVES ANY ARGUMENT THAT VENUE IN SUCH FORUMS IS NOT CONVENIENT. IN THE
EVENT A GUARANTOR COMMENCES ANY ACTION IN ANOTHER JURISDICTION OR VENUE UNDER ANY TORT OR CONTRACT THEORY ARISING DIRECTLY OR INDIRECTLY FROM THE RELATIONSHIP CREATED BY THIS GUARANTY, THE AGENT AT ITS OPTION SHALL BE ENTITLED TO HAVE THE CASE
TRANSFERRED TO ONE OF THE JURISDICTIONS AND VENUES ABOVE-DESCRIBED, OR IF SUCH TRANSFER CANNOT BE ACCOMPLISHED UNDER APPLICABLE LAW, TO HAVE SUCH CASE DISMISSED WITHOUT PREJUDICE. 
 Section 24. Waiver of Jury Trial. EACH OF THE GUARANTORS AND THE AGENT, BY ITS ACCEPTANCE OF THIS GUARANTY, IRREVOCABLY WAIVES ANY
AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS GUARANTY OR THE TRANSACTIONS CONTEMPLATED HEREBY. 
 Section 25. Counterparts. This Guaranty may be executed in any number of counterparts, each of which when so executed and delivered shall be deemed an original, but all such counterparts together shall constitute but one and the
same instrument. 
 Section 26. General. All representations and warranties contained in this Guaranty or in any other agreement
between a Guarantor and the Agent or any Lender shall survive the execution, delivery and performance of this Guaranty and the creation and payment of the Obligations. Captions in this Guaranty are for reference and convenience only and shall not
affect the interpretation or meaning of any provision of this Guaranty. 
 [Signatures Follow On Succeeding Pages] 
  

 8 

 IN WITNESS WHEREOF, each Guarantor has executed this Guaranty as of the date first above written.

  

			
	CLASSIC DESIGN CONCEPTS, LLC
		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 2003111801002 
 Grantor’s Tax
ID #                          
  

			
	PERFORMANCE CONCEPTS, LLC
		
	By	 	 /s/ Douglass Goad

	Name	 	Douglass Goad
	Title	 	President

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Michigan 
 Grantor’s Org # B7900K 
 Grantor’s Tax ID #
                         
  

			
	POWERTRAIN INTEGRATION, LLC
		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 2004011400052 
 Grantor’s Tax
ID # 80-0101312 
  

 [Signature pages to Guaranty (Quantum)] 
 S-1 

			
	 REGENCY CONVERSIONS, LLC

		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Michigan 
 Grantor’s Org # B8156X 
 Grantor’s Tax ID #
20-4138893 
  

			
	 STARCRAFT AUTOMOTIVE GROUP, INC.

		
	By	 	 /s/ Joseph Katona III

	Name	 	Joseph Katona III
	Title	 	CFO/Treasurer

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 1994060074 
 Grantor’s Tax ID
#                          
  

			
	 TECSTAR, L.P.

		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 1998100361 
 Grantor’s Tax ID
# 35-2081466 
  

 [Signature pages to Guaranty (Quantum)] 
 S-2 

			
	 TECSTAR AUTOMOTIVE GROUP, INC.

		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 1990120776 
 Grantor’s Tax ID
# 35-1817634 
  

			
	 TECSTAR PARTNERS, LLC

		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 2004062900050 
 Grantor’s Tax
ID # 20-3749177 
  

			
	 TROY TOOLING, LLC

		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Michigan 
 Grantor’s Org # B7532K 
 Grantor’s Tax ID #
38-2960551 
  

 [Signature pages to Guaranty (Quantum)] 
 S-3 

			
	UNIQUE PERFORMANCE CONCEPTS, LLC
		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Michigan 
 Grantor’s Org # B7900J 
 Grantor’s Tax ID #
20-4090400 
  

			
	WHEEL TO WHEEL, LLC
		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Indiana 
 Grantor’s Org # 2003102400053 
 Grantor’s Tax
ID # 80-0101312 
  

			
	WHEEL TO WHEEL POWERTRAIN, LLC
		
	By	 	 /s/ Kenneth R. Lombardo

	Name	 	Kenneth Lombardo
	Title	 	General Counsel

 Address: 
 570
Executive Drive 
 Troy, Michigan 48083 
 State of Organization:
Michigan 
 Grantor’s Org # B2706E 
 Grantor’s Tax ID #
80-0101312 
  

 [Signature pages to Guaranty (Quantum)] 
 S-4 

 EXHIBIT A 
 TO GUARANTY 
 FORM OF JOINDER AGREEMENT 
 This JOINDER AGREEMENT, dated as of
                             ,
             (this “Agreement”), is by [Insert Name of applicable Subsidiary or Affiliate], a
[                            ] formed under the laws of the State of
[                            ] (the “Joining Party”), and is delivered to the Agent
(as defined below) pursuant to Section 17 of that certain Guaranty, dated as of January 31, 2007 (as the same may be amended, supplemented or supplemented from time to time, the “Guaranty”), among each Guarantor thereto
from time to time and WB QT, LLC, as Agent for the Lenders (the “Agent”) under that certain Credit Agreement dated as of January 31, 2007 (as amended, supplemented or otherwise modified from time to time, the “Credit
Agreement”) by and among Quantum Fuel Systems Technologies Worldwide, Inc., the lenders from time to time party thereto (the “Lenders”), and WB QT, LLC, as a Lender and as Agent for the Lenders. Capitalized terms used but
not defined herein shall have the meanings assigned to such terms in the Guaranty. 
 Pursuant to Section 17 of the Guaranty, by its
execution of this Agreement, the Joining Party becomes a party to the Guaranty bound by all of the terms and conditions thereof, and, from and after the date hereof, is a Guarantor entitled to all of the rights and benefits and bound by all of the
obligations of a Guarantor under the Guaranty. The Joining Party hereby acknowledges that by becoming party to the Guaranty the Joining Party hereby absolutely and unconditionally guarantees to the Agent for the ratable benefit of the Lenders the
payment when due (whether at a stated maturity or earlier by reason of acceleration or otherwise) and performance of the Obligations. The Joining Party’s legal name (as set forth in its constituent documents filed with the appropriate
governmental official or agency) and jurisdiction of organization is as set forth in the opening paragraph hereof. The Joining Party hereby ratifies, as of the date hereof, and agrees to be bound by, all of the terms, provisions, obligations and
conditions applicable to a Guarantor in the Guaranty. 
 This Agreement and any amendments, waivers, consents or supplements hereto or in
connection herewith may be executed in any number of counterparts and by different parties hereto in separate counterparts, each of which when so executed and delivered shall be deemed an original, but all such counterparts together shall constitute
but one and the same instrument; signature pages may be detached from multiple separate counterparts and attached to a single counterpart so that all signature pages are physically attached to the same document. 
 This Agreement shall be binding upon the parties hereto and their respective executors, administrators, other legal representatives, successors and
assigns, and shall inure to the benefit of the Agent, its successors and assigns and shall be governed by the laws of the State of Minnesota without reference to principles of conflict of laws. 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 
  

 EXH A-1 

 IN WITNESS WHEREOF, the Joining Party, by its officers duly authorized, intending to be legally bound, has caused this
Joinder Agreement to be duly executed and delivered, and the Agent has caused the same to be accepted by its authorized representative, as of the date first above written. 
  

			
	 [Insert name of Joining Party],

	 a
[                                       
 ]

		
	 By:
	 	  

	Name:	 	
	Title:	 	

 Acknowledged and accepted: 
  

			
	 WB QT, LLC, as Agent

		
	 By:
	 	 /s/ Jonathan Wood

	Name:	 	Jonathan Wood
	Title:	 	Director

  

 EXH A-2

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