Document:

Exhibit
4.4

 

THIS
WARRANT AND THE SHARES OF CAPITAL STOCK ISSUED UPON ANY EXERCISE HEREOF HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED (THE “1933 ACT”), OR ANY APPLICABLE STATE SECURITIES LAWS AND MAY NOT BE SOLD OR OTHERWISE TRANSFERRED TO ANY PERSON,
INCLUDING A PLEDGEE, UNLESS (1) EITHER (A) A REGISTRATION STATEMENT WITH RESPECT THERETO SHALL BE EFFECTIVE UNDER THE 1933 ACT, OR (B)
THE COMPANY SHALL HAVE RECEIVED AN OPINION OF COUNSEL SATISFACTORY TO THE COMPANY THAT AN EXEMPTION FROM REGISTRATION UNDER THE 1933
ACT IS AVAILABLE, AND (2) THERE SHALL HAVE BEEN COMPLIANCE WITH ALL APPLICABLE STATE SECURITIES OR “BLUE SKY” LAWS.

 

	Warrant No.
2017-1	 Warrant to Purchase Shares of

Series
D-1 Preferred STOCK

 

WARRANT
TO PURCHASE

 

SERIES
D-1 PREFERRED STOCK

 

OF

 

XL
HYBRIDS, INC.

 

(A
DELAWARE CORPORATION)

 

XL
Hybrids, Inc., a Delaware corporation (the “Company”), for value received, hereby certifies that MOTIV Partners
LLC or its registered assigns (the “Holder”), is entitled, subject to the terms set forth below, to purchase from
the Company, at any time at or before the earlier of (a) 5:00 p.m., EST, on September 29, 2022 and (b) the termination of this Warrant
as provided in Section 7 hereof, that number of shares of the Company’s Series D-1 Preferred Stock of the Company, par value $0.0001
per share (the “Series D Preferred”) determined pursuant to Section 1 herein at an exercise price per share determined
pursuant to Section 2 herein.

 

This
Warrant to Purchase Series D Preferred (this “Warrant”) is issued pursuant to that certain Consulting Agreement entered
into on or about July 20, 2017 by and between the Company and Holder, as amended (the “Consulting Agreement”) and
as additional consideration to the Holder for its agreements therein. Except as to those terms otherwise defined in this Warrant, all
capitalized terms used in this Warrant shall have the respective meanings ascribed to them in the Consulting Agreement.

 

1. Number
of Shares for Which Warrant is Exercisable; Vesting.

 

1.1 In
accordance with the terms of the Consulting Agreement, the Warrant shall become exercisable for an aggregate of 225,108 shares of Series
D Preferred of the Company (subject to future adjustment from time to time pursuant to the terms of Section 4 herein).

 

1.2 Vesting.
The Warrant may be exercised as follows:

 

(a) Warrants
to purchase 138,528 shares of Series D-1 Preferred Stock shall be exerciseable immediately upon grant until the fifth anniversary of
the Payment Date;

 

(b) Warrants
to purchase 51,948 shares of Series D-1 Preferred Stock shall become exerciseable as of January 20, 2018 until January 20, 2023; and

 

(c) Warrants
to purchase 34,632 shares of Series D-1 Preferred Stock shall become exerciseable as of July 20, 2018 until July 20, 2023.

 

2. The
Exercise Price. The price per share of Series D Preferred at which this Warrant may be exercised (the “Exercise Price”)
shall be $0.5775 (subject to future adjustment from time to time pursuant to the terms of Section 4 herein).

 

     

     

    

 

3. Exercise.

 

3.1 Manner
of Exercise; Payment in Cash. This Warrant may be exercised by the Holder, in whole or in part, by surrendering this Warrant, with
the notice of exercise form appended hereto as Exhibit A duly executed by the Holder, at the principal office of the Company,
or at such other place as the Company may designate, accompanied by payment in full of the Exercise Price payable in respect of the number
of shares of Series D Preferred purchased upon such exercise. Payment of the Exercise Price shall be in cash or by certified or official
bank check payable to the order of the Company.

 

3.2 Effectiveness.
Each exercise of this Warrant shall be deemed to have been effected immediately prior to the close of business on the day on which this
Warrant shall have been surrendered to the Company as provided in Section 3.1 above; provided that any exercise of this Warrant on the
day of the closing of the Company’s Initial Public Offering shall be deemed to have been effected immediately prior to such closing.
At such time, the person or persons in whose name or names any certificates for Series D Preferred Stock shall be issuable upon such
exercise as provided in Section 3.3 below shall be deemed to have become the holder or holders of record of the Series D Preferred Stock
represented by such certificates.

 

3.3 Delivery
of Certificates. As soon as practicable after the exercise of this Warrant in full or in part, and in any event within ten business
days thereafter, the Company at its sole expense will cause to be issued in the name of, and delivered to, the Holder, or, subject to
the terms and conditions hereof, as such Holder may direct:

 

(a) A
certificate or certificates for the number of full shares of Series D Preferred Stock to which such Holder shall be entitled upon such
exercise plus, in lieu of any fractional share to which such Holder would otherwise be entitled, cash in an amount determined pursuant
to Section 3.4 hereof, and

 

(b) In
case such exercise is in part only, a new warrant or warrants (dated the date hereof) of like tenor, calling in the aggregate on the
face or faces thereof for the number of shares of Series D Preferred Stock (without giving effect to any adjustment therein) equal to
the number of such shares called for on the face of this Warrant minus the number of such shares purchased by the Holder upon such exercise
as provided in Section 3.1 above.

 

3.4 Fractional
Shares. The Company shall not be required upon the exercise of this Warrant to issue any fractional shares, but shall make an adjustment
therefor in cash on the basis of the fair market value of a share of such Series D Preferred determined pursuant to Section 3.5(c) herein.

 

3.5 Right
to Convert Warrant into Stock: Net Issuance.

 

(a) Right
to Convert. In addition to and without limiting the rights of the Holder under the terms of this Warrant, the Holder shall have the
right to convert this Warrant or any portion thereof (the “Conversion Right”), when exercisable, into shares of Series
D Preferred as provided in this Section 3.5. Upon exercise of the Conversion Right with respect to a particular number of shares subject
to this Warrant (the “Converted Warrant Shares”), the Company shall deliver to the Holder (without payment by the
Holder of any Exercise Price or any cash or other consideration) that number of shares of fully paid and nonassessable Series D Preferred
equal to the quotient obtained by dividing (X) the value of this Warrant (or the specified portion hereof) on the Conversion Date (as
defined in subsection (b) hereof), which value shall be determined by subtracting (A) the aggregate Exercise Price of the Converted Warrant
Shares immediately prior to the exercise of the Conversion Right from (B) the aggregate fair market value of the Converted Warrant Shares
issuable upon exercise of this Warrant (or the specified portion hereof) on the Conversion Date by (Y) the fair market value of one share
of the type of Series D Preferred on the Conversion Date for which the Warrant is exercised.

 

    2

     

    

 

Expressed
as a formula, such conversion shall be computed as follows:

 

N
= B-A

 

Y

 

where:N
= the number of shares of Series D Preferred that may be issued to Holder

 

Y
= the fair market value (FMV) of one share of such Series D Preferred

 

A
= the aggregate Warrant Price (Converted Warrant Shares x Exercise Price)

 

B
= the aggregate FMV (i.e., FMV x Converted Warrant Shares)

 

No
fractional shares shall be issuable upon exercise of the Conversion Right, and, if the number of shares to be issued determined in accordance
with the foregoing formula is other than a whole number, the Company shall pay to the Holder an amount in cash equal to the fair market
value of the resulting fractional share of the Conversion Date.

 

(b) Method
of Exercise. The Conversion Right may be exercised by the Holder by the surrender of this Warrant, when exercisable, at the principal
office of the Company together with the Subscription Form in the form attached hereto duly completed and executed and indicating the
number of shares subject to this Warrant which are being surrendered (referred to in Section 3.5(a) hereof as the Converted Warrant Shares)
in exercise of the Conversion Right. Such conversion shall be effective upon receipt by the Company of this Warrant together with the
aforesaid written statement, or on such later date as is specified therein (the “Conversion Date”), and, at the election
of the Holder hereof, may be made contingent upon the occurrence of any of the events specified in Section 4. Certificates for the shares
issuable upon exercise of the Conversion Right and, if applicable, a new Warrant evidencing the balance of the shares remaining subject
to this Warrant, shall be issued as of the Conversion Date and shall be delivered to the Holder within 30 days following the Conversion
Date.

 

(c) Determination
of Fair Market Value. For purposes of this Section 3.5, “fair market value” of a share of Series D Preferred as of a
particular date (the “Determination Date”) shall mean:

 

(i) If
the Conversion Right is exercised in connection with and contingent upon a public offering, and if the Company’s Registration Statement
relating to such public offering (“Registration Statement”) has been declared effective by the Securities and Exchange
Commission, then the initial “Price to Public” of a share of Common Stock specified in the final prospectus with respect
to such offering.

 

(ii) If
the Conversion Right is not exercised in connection with and contingent upon a public offering, then as follows:

 

		(1)	If
                                            traded on a securities exchange, the fair market value of the Common Stock shall be deemed
                                            to be the average of the closing prices of the Common Stock on such exchange over the five-day
                                            period ending one Business Day prior to the Determination Date or, if less, such number of
                                            days as the Common Stock has been traded on such exchange;

 

		(2)	If
                                            traded over-the-counter, the fair market value of the Common Stock shall be deemed to be
                                            the average of the closing bid prices of the Common Stock over the five-day period ending
                                            one Business Day prior to the Determination Date or, if less, such number of days as the
                                            Common Stock has been traded over-the-counter; and

 

    3

     

    

 

		(3)	If
                                            there is no public market for the Company’s Series D Preferred, then fair market value
                                            of a share of such Series D Preferred shall be determined in good faith by the Board of Directors
                                            of the Company.

 

4. Certain
Adjustments.

 

4.1 Changes
in Series D Preferred. If the Company shall (i) combine the type of Series D Preferred to be issued hereunder or its Common Stock
into a lesser number of shares, (ii) subdivide the type of Series D Preferred to be issued hereunder or its Common Stock into a greater
number of shares, or (iii) issue additional shares of the type of Series D Preferred to be issued hereunder or its Common Stock as a
dividend or other distribution with respect to the Series D Preferred or Common Stock, the number of shares of Series D Preferred to
be issued pursuant to the terms of the Warrant shall be equal to the number of shares which the Holder would have been entitled to receive
after the happening of any of the events described above if such shares had been issued immediately prior to the happening of such event,
such adjustment to become effective concurrently with the effectiveness of such event.

 

4.2 Reorganizations
and Reclassifications. If there shall occur any capital reorganization or reclassification of its Series D Preferred (other than
a change in par value or a subdivision or combination as provided for in Section 4.1), then, as part of any such reorganization or reclassification,
lawful provision shall be made so that the Holder shall have the right thereafter to receive upon the exercise hereof the kind and amount
of shares of stock or other securities or property which such Holder would have been entitled to receive if, immediately prior to any
such reorganization or reclassification, such Holder had held the number of shares of Series D Preferred which were then purchasable
upon the exercise of this Warrant. In any such case, appropriate adjustment (as reasonably determined by the Board of Directors of the
Company) shall be made in the application of the provisions set forth herein with respect to the rights and interests thereafter of the
Holder such that the provisions set forth in this Section 4 (including provisions with respect to adjustment of the Exercise Price) shall
thereafter be applicable, as nearly as is reasonably practicable, in relation to any shares of stock or other securities or property
thereafter deliverable upon the exercise of this Warrant.

 

4.3 Merger,
Consolidation or Sale of Assets. Subject to the provisions of this Section 4 and Section 7, if there shall be a merger or consolidation
of the Company with or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation
of the Company or the acquisition by the Company of other businesses where the Company survives as a going concern), or the sale of all
or substantially all of the Company’s capital stock or assets to any other person, then as a part of such transaction, provision
shall be made so that the Holder shall thereafter be entitled to receive the number of shares of stock or other securities or property
of the Company, or of the successor corporation resulting from the merger, consolidation or sale, to which the Holder would have been
entitled if the Holder had exercised its rights pursuant to the Warrant immediately prior thereto. In any such case, appropriate adjustment
shall be made in the application of the provisions of this Section 4 to the end that the provisions of this Section 4 shall be applicable
after that event in as nearly equivalent a manner as may be practicable.

 

4.4 Statement
of Adjustment. Whenever the Exercise Price or the Series D Preferred to be issued hereunder shall be adjusted as provided in this
Section 4, the Company shall forthwith file with the Secretary of the Company or at such other place as shall be designated by the Company,
a statement, signed by its chief financial officer, showing in detail the facts requiring such adjustment, the Exercise Price in effect
before and after such adjustment and the kind and amount of shares of capital stock, securities or other property thereafter to be received
upon the exercise of this Warrant. The Company shall also cause a copy of such statement to be sent in the manner specified in Section
9 hereof to the Holder. Where appropriate, such copy may be given in advance and may be included as part of a notice required to be mailed
under the provisions of Section 4.5.

 

4.5 Notice
of Adjustment. In the event the Company shall propose to take any action of the types described in Sections 4.1, 4.2 or 4.3, the
Company shall give notice to the Holder in the manner set forth in Section 9 hereof, which notice shall specify the record date, if any,
with respect to any such action and the date on which such action is to take place. Such notice shall also set forth such facts with
respect thereto as shall be reasonably necessary to indicate the effect of such action (to the extent such effect may be known at the
date of such notice) on the Exercise Price and the number, kind or class of shares or other securities or property which shall be deliverable
or purchasable upon the occurrence of such action or deliverable upon the exercise hereof. In the case of any action which would require
the fixing of a record date, such notice shall be given at least ten days prior to the date so fixed, and in case of all other actions,
such notice shall be given at least 20 days prior to the taking of such proposed action.

 

    4

     

    

 

4.6 Taxes.
The Company shall pay all documentary, stamp or other transactional taxes, but excluding any income or withholding taxes, attributable
to the issuance or delivery of shares of capital stock of the Company upon the exercise or conversion of this Warrant.

 

5. Company
Representations, Warranties and Covenants. This Warrant is issued and delivered by the Company and accepted by Holder in reliance
on the following representations, warranties and covenants made by the Company:

 

5.1 The
Company has all necessary authority to issue, execute and deliver this Warrant and to perform its obligations hereunder. This Warrant
has been duly authorized issued, executed and delivered by the Company and is the valid and binding obligation of the Company, enforceable
in accordance with its terms.

 

5.2 At
all times during the term of this Warrant, the Company shall timely take all necessary corporate actions to ensure that the Converted
Warrant Shares issuable upon the exercise of this Warrant and shares of Common Stock issuable upon conversion of the Converted Warrant
Shares into Common Stock shall be duly authorized and reserved for issuance by the Company upon exercise hereof and, when issued in accordance
with the terms hereof, the Converted Warrant Shares and the Common Stock so issuable will, when issued, be duly and validly issued, fully
paid and non-assessable.

 

6. Representations
and Covenants of the Holder. This Warrant has been entered into by the Company in reliance upon the following representations and
covenants of the Holder:

 

6.1 Investment
Purpose. This Warrant is being acquired by Holder, and the Shares issued upon any exercise hereof will be acquired by Holder, for
investment and not with a view to the sale or distribution of any part thereof, and the Holder has no present intention of selling or
engaging in any public distribution of the same except pursuant to a registration or exemption.

 

6.2 Accredited
Investor. Holder is an “accredited investor” within the meaning of Regulation D under the 1933 Act (“Regulation
D”).

 

6.3 Private
Issue. The Holder understands (i) that the Converted Warrant Shares are not registered under the 1933 Act or qualified under applicable
state securities laws on the ground that the issuance contemplated by this Warrant will be exempt from the registration and qualifications
requirements thereof, and (ii) that the Company’s reliance on such exemption is predicated on the representations set forth in
this Section 6.

 

6.4 Financial
Risk. The Holder has such knowledge and experience in financial and business matters as to be capable of evaluating the merits and
risks of its investment in this Warrant and the Converted Warrant Shares and has the ability to bear the economic risks of its investment.

 

6.5 No
Need for Liquidity. The Holder is aware that he or she will be unable to liquidate his or her investment readily in case of an emergency
and that the Converted Warrant Shares being purchased may have to be held for an indefinite period of time. The Holder’s overall
commitment to investments which are not readily marketable is not excessive in view of his or her net worth and financial circumstances
and the purchase of the Converted Warrant Shares will not cause such commitment to become excessive. In view of such facts, the Holder
acknowledges that he or she has adequate means of providing for his or her current needs, anticipated future needs and possible contingencies
and emergencies and have no need for liquidity in the investment in the Converted Warrant Shares. The Holder is able to bear the economic
risk of this investment.

 

6.6 No
Regulatory Approval of Merits. The Holder understands that neither the Securities and Exchange Commission nor the commissioner or
department of securities or attorney general of any state has passed upon the merits or qualifications of, nor recommended nor approved,
the Converted Warrant Shares. Any representation to the contrary is a criminal offense.

 

    5

     

    

 

6.7 Independent
Advice. The Holder understands that he or she is encouraged to seek independent advice from Holder’s professional advisors
relating to the suitability for the Holder of an investment in the Company in view of the Holder’s overall financial needs and
with respect to the legal and tax implications of such an investment. Holder has done its own investigation and is not relying upon any
statements of the Company.

 

6.8 Opportunity
to Investigate. Prior to the exercise of this Warrant, the Holder’s advisors and the Holder have had the opportunity to ask
questions of, and receive answers from, representatives of the Company concerning the terms and conditions of this transaction, and the
finances, operations, business and prospects of the Company. The Holder’s advisors and the Holder have also had the opportunity
to obtain additional information necessary to verify the accuracy of information furnished about the Company. Accordingly, the Holder
has independently evaluated the risks of purchasing the Converted Warrant Shares, and the Holder is satisfied that the Holder has received
information with respect to all matters which the Holder considers material to his, her or its decision to make the investment in the
Company and the Converted Warrant Shares.

 

6.9 Authority
and Non-contravention. The execution and performance hereof violates no order, judgment, injunction, agreement or controlling document
to which the Holder is a party or by which the Holder is bound. If an organization, (i) the Holder is duly organized, validly existing
and in good standing under the laws of the jurisdiction in which it has been formed; and (ii) the Holder has the right and power under
its organizational instruments to execute, deliver and perform its obligations hereunder.

 

7. Termination
Upon Certain Events.

 

7.1 Termination
Upon Merger, Consolidation or Sale of Assets. In the event that this Warrant is not timely exercised prior to the consummation of
the closing of a Liquidation Event after the date hereof, this Warrant shall terminate upon the closing of such Liquidation Event (the
“Termination Date”) and become null and void, provided that the Company shall have given the Holder written notice of such
Liquidation Event and Termination Date at least ten (10) days prior to the occurrence thereof.

 

7.2 Termination
Upon Initial Public Offering. In the event that this Warrant is not timely exercised prior to the consummation of the closing of
the Initial Public Offering, this Warrant shall terminate and be void and of no force or effect upon the consummation of the closing
of the Initial Public Offering, provided that the Company shall have provided the Holder written notice of the Initial Public Offering
at least twenty (20) days prior to the consummation of the closing of the Initial Public Offering.

 

8. Replacement
of Warrants. Upon receipt of evidence reasonably satisfactory to the Company of the loss, theft, destruction or mutilation of this
Warrant and (in the case of loss, theft or destruction) upon delivery of an indemnity agreement (with surety if reasonably required)
in an amount reasonably satisfactory to the Company, or (in the case of mutilation) upon surrender and cancellation of this Warrant,
the Company will issue, in lieu thereof, a new Warrant of like tenor.

 

9. Transferability.
Subject to compliance with applicable federal and state securities laws, this Warrant and all rights hereunder are transferable in whole
or in part by the Holder to any person or entity with the Company’s prior written consent. The transfer shall be recorded on the
books of the Company upon the surrender of this Warrant, properly endorsed, to the Company at its principal offices, and the payment
to the Company of all transfer taxes and other governmental charges imposed on such transfer. In the event of a partial transfer, the
Company shall issue to the holders one or more appropriate new warrants.

 

10. Notices.
All notices and other communications required or permitted hereunder shall be in writing and shall be deemed effectively given: (i) upon
personal delivery to the party to be notified; (ii) when sent by confirmed telex or facsimile if sent during normal business hours of
the recipient; if not, then on the next business day; (iii) upon actual receipt in case of electronic transmission, (iv) five (5) days
after having been sent by registered or certified mail, return receipt requested, postage prepaid; or (v) the next business day after
deposit with a nationally recognized overnight courier, fee prepaid, specifying next business day delivery. All notices and other communications
shall be addressed to a party at its address set forth below, or at such other address as a party may designate to the other party upon
ten (10) days advance written notice.

 

    6

     

    

 

	 	If to
    Holder:	MOTIV Partners LLC
	 	 	 
	 	If to the Company:	XL Hybrids, Inc.
	 	 	145 Newton Street
	 	 	Boston, Massachusetts
    02135
	 	 	Attention: Thomas
    J. Hynes III
	 	 	 
	 	with a courtesy
    copy to:	Mintz, Levin, Cohn,
    Ferris, Glovsky and Popeo, P.C.
	 	 	 One Financial
    Center | Boston, MA 02111
	 	 	Attention: Thomas
    R. Burton III

 

11. Waivers
and Modifications. The terms of this Warrant may be amended, modified or waived only with the written consent of the Holder and the
Company.

 

12. Headings.
The headings in this Warrant are for convenience of reference only and shall in no way modify or affect the meaning or construction of
any of the terms or provisions of this Warrant.

 

13. Governing
Law. This Warrant will be governed by and construed in accordance with and governed by the laws of the Commonwealth of Massachusetts,
without giving effect to the conflict of law principles thereof.

 

14. Successors
and Assigns. This Warrant shall be binding upon the Company’s successors and assigns and shall inure to the benefit of the
Holder’s successors, legal representatives and permitted assigns.

 

15. Business
Days. If the last or appointed day for the taking of any action required or the expiration of any rights granted herein shall be
a Saturday or Sunday or a legal holiday in Massachusetts, then such action may be taken or right may be exercised on the next succeeding
day which is not a Saturday or Sunday or such a legal holiday.

 

16. Severability.
If any part of this Warrant is contrary to, prohibited by, or deemed invalid under applicable laws or regulations, such provision shall
be inapplicable and deemed omitted to the extent so contrary, prohibited or invalid, but the remainder hereof shall not be invalidated
thereby and shall be given effect so far as possible.

 

17. Counterparts;
Electronic Signatures. This Warrant may be executed in any number of, and by different parties hereto on, separate counterparts,
all of which, when so executed, shall be deemed an original, but all such counterparts shall constitute one and the same agreement. Any
signature delivered by a party by facsimile or email transmission shall be deemed to be an original signature hereto.

 

[Remainder
of page left blank intentionally; signature page follows]

 

    7

     

    

 

IN
WITNESS WHEREOF, the Company has caused this Warrant to Purchase Series D-1 Preferred Stock to be executed by its duly authorized officer
as of the date first above written.

 

	 	XL
    HYBRIDS, INC.
	 	 
	 	By: 	/s/
Thomas J. Hynes III
	 	Name:  	Thomas J. Hynes
    III
	 	Title: 	President

 

Accepted:

 

HOLDER:

 

MOTIV
PARTNERS LLC

 

	/s/
Oliver Guinness	 
	Name: 
    	Oliver
    Guinness	 
	Title:	Managing DirectorExhibit 4.5

 

AMENDMENT TO WARRANT TO PURCHASE

SERIES D-1 PREFERRED STOCK

 

This Amendment to the Warrant
to Purchase Series D-1 Preferred Stock of XL Hybrids, Inc. (this “Amendment”) is made and entered into as of December
15, 2020, by and among XL Hybrids, Inc., a Delaware corporation (the “Company”), and Motiv Partners LLC (“Holder”).
Terms used but not defined herein shall have the meaning assigned to such terms in the Merger Agreement (as defined below).

 

RECITALS

 

WHEREAS, the Company and Holder
are parties to the Warrant to Purchase Series D-1 Preferred Stock of XL Hybrids, Inc. which provides for the purchase of 225,108 shares
of Series D-1 Preferred Stock of the Company (the “Warrant”);

 

WHEREAS, the Company intends
to consummate a merger transaction pursuant to the Agreement and Plan of Reorganization, dated as of September 17, 2020 (the “Merger
Agreement”), by and among the Company, Pivotal Investment Corporation II (“Parent”) and PIC II Merger Sub
Corp. (“Merger Sub”) whereby Merger Sub shall be merged with and into the Company, and the Company shall continue as
a wholly owned subsidiary of Parent (the “Merger”);

 

WHEREAS, at the effective
time of the Merger, each Company Warrant, including the Warrant, shall be automatically assumed by Parent and shall become a warrant to
acquire, on the same terms and conditions as were applicable under each such Company Warrant, a number of shares of Parent Common Stock
determined as set forth in Section 1.10(b) of the Merger Agreement; and

 

WHEREAS, the Company and Holder
wish to amend the Warrant to ensure that the Warrant automatically converts to a warrant to acquire shares of Parent Common Stock.

 

NOW, THEREFORE, in consideration
of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, the parties hereto, intending to be legally bound, agree as follows:

 

ARTICLE
I

AMENDMENT TO WARRANT

 

1.1 Amendment to Introductory
Paragraph. The first paragraph of the Warrant is hereby deleted in its entirety and replaced with the following:

 

“XL Hybrids, Inc.,
a Delaware corporation (the “Company”), for value received, hereby certifies that MOTIV Partners LLC or its
registered assigns (the “Holder”), is entitled, subject to the terms set forth below, to purchase from the Company,
at any time at or before the earlier of (a) with respect to shares that are vested pursuant to Section 1.2 of this Warrant, the day after
such vested shares are no longer exercisable as provided in Section 1.2 of this Warrant and (b) the termination of this Warrant as provided
in Section 7 hereof, that number of shares of the Company’s Series D-1 Preferred Stock of the Company, par value $0.0001 per share
(the “Series D Preferred”) determined pursuant to Section 1 herein at an exercise price per share determined pursuant
to Section 2 herein.”

 

1.2 Amendment to Merger
Provision. Section 4.3 of the Warrant is hereby deleted in its entirety and replaced with the following:

 

     

     

    

 

“Merger, Consolidation or Sale
of Assets. Subject to the provisions of this Section 4 and Section 7, if there shall be a merger or consolidation of the Company with
or into another corporation (other than a merger or reorganization involving only a change in the state of incorporation of the Company
or the acquisition by the Company of other businesses where the Company survives as a going concern), or the sale of all or substantially
all of the Company’s capital stock or assets to any other person, then as part of such transaction, this Warrant shall thereafter
be exercisable for (a) the same securities and/or property as would have been paid for the shares issuable upon exercise of the unexercised
portion of this Warrant as if such shares were outstanding on and as of the closing of such transaction or (b) if such merger is with
PIC II Merger Sub Corp. (“Merger Sub”) pursuant to the Agreement and Plan of Reorganization (the “Merger Agreement”),
dated as of September 17, 2020, by and among the Company, Pivotal Investment Corporation II (“Parent”) and Merger Sub,
whereby Merger Sub shall be merged with and into the Company, and the Company shall continue as a wholly owned subsidiary of Parent (the
“Merger”), that number of shares of Parent Common Stock (as defined in the Merger Agreement) as provided in Section
1.10(b) of the Merger Agreement. In any case, appropriate adjustment shall be made in the application of the provisions of this Section
4 to the end that the provisions of this Section 4 shall be applicable after that event in as nearly equivalent a manner as may be practicable.”

 

1.3 Amendment to Notice
of Adjustment. Section 4.5 of the Warrant is hereby deleted in its entirety and replaced with the following:

 

“Notice of Adjustment.
In the event the Company shall propose to take any action of the types described in Sections 4.1, 4.2 or 4.3, the Company shall give notice
to the Holder in the manner set forth in Section 10 hereof, which notice shall specify the record date, if any, with respect to any such
action and the date on which such action is to take place. Such notice shall also set forth such facts with respect thereto as shall be
reasonably necessary to indicate the effect of such action (to the extent such effect may be known at the date of such notice) on the
Exercise Price and the number, kind or class of shares or other securities or property which shall be deliverable or purchasable upon
the occurrence of such action or deliverable upon the exercise hereof. In the case of any action which would require the fixing of a record
date, such notice shall be given at least ten days prior to the date so fixed, and in case of all other actions, such notice shall be
given at least 20 days prior to the taking of such proposed action. Notwithstanding the foregoing, in the event of the consummation of
the Merger the Company shall give notice to the Holder promptly thereafter in the manner set forth in Section 10 hereof, which notice
shall specify the number of shares of Parent Common Stock this Warrant is exercisable and the Exercise Price for such shares of Parent
Common Stock.”

 

1.4 Amendment to Termination
Upon Merger, Consolidation or Sale of Assets. The following sentence shall be added following the last sentence of Section 7.1 of
the Warrant:

 

“For the avoidance of doubt, the
Merger shall not be considered a Liquidation Event for purposes of this Section 7.1.”

 

ARTICLE
II

MISCELLANEOUS

 

2.1 Headings. The headings
contained in this Amendment are for reference purposes only and shall not affect in any way the meaning or interpretation of this Amendment.

 

2.2 Governing Law.
This Amendment and all acts and transactions pursuant hereto and the rights and obligations of the parties hereto shall be governed, construed
and interpreted in accordance with the laws of the Commonwealth of Massachusetts, without giving effect to principles of conflicts of
law.

 

2.3 Counterparts. This
Amendment may be executed in counterparts, each of which shall be deemed to be an original, and all of which together shall be deemed
to be one and the same instrument.

 

    	 	2	 

     

    

 

2.4 Electronic and Facsimile
Signatures. Any signature page delivered electronically or by facsimile (including without limitation transmission by .pdf) shall
be binding to the same extent as an original signature page, with regard to any agreement subject to the terms hereof or any amendment
thereto. Any party who delivers such a signature page agrees to later deliver an original counterpart to the other party if so requested.

 

2.5 Effect of Amendment.
Except as amended and as explicitly set forth above, the Warrant shall continue in full force and effect and the terms of the Warrant
shall remain unchanged.

 

[Signature Pages Follow.]

 

    	 	3	 

     

    

 

The parties hereto have executed
this Amendment to Amended and Restated Warrant to Purchase Common Stock as of the date first written above.

 

	 	COMPANY:
	 	 
	 	XL HYBRIDS, INC.
	 	 	 
	 	By:	/s/ Dimitri Kazarinoff
	 	Name:  	Dimitri Kazarinoff
	 	Title:  	President and CEO

 

     

     

    

 

The parties hereto have executed
this Amendment to Amended and Restated Warrant to Purchase Common Stock as of the date first written above.

 

	 	HOLDER:
	 	 
	 	MOTIV PARTNERS, LLC
	 	 	 
	 	By:	/s/ Oliver Guinness
	 	Name:  	Oliver Guinness
	 	Title:  	Managing Director

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