Document:

Exhibit 4.2

 

SPECIMEN CLASS A ORDINARY SHARE CERTIFICATE

 

	NUMBER	SHARES

 

JAWS MUSTANG ACQUISITION CORPORATION

INCORPORATED UNDER THE LAWS OF THE CAYMAN
ISLANDS

CLASS A ORDINARY SHARES

 

SEE REVERSE FOR

CERTAIN DEFINITIONS

 

CUSIP [               ]

 

This Certifies that                                               is
the owner of

 

FULLY PAID AND NON-ASSESSABLE CLASS A
ORDINARY SHARES OF THE PAR VALUE OF US$0.0001 EACH OF JAWS MUSTANG ACQUISITION CORPORATION (THE “COMPANY”)

 

subject to the Company’s amended
and restated memorandum and articles of association, as the same may be amended from time to time, and transferable on the books
of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed.

 

The Company will be forced to redeem
all of its Class A ordinary shares if it is unable to complete a business combination within the period set forth in the Company’s
amended and restated memorandum and articles of association, as the same may be amended from time to time, all as more fully described
in the Company’s final prospectus dated [●], 2021.

 

This certificate is not valid unless
countersigned by the Transfer Agent and registered by the Registrar.

 

Witness the facsimile signatures of its
duly authorized officers.

 

	Dated:	 	 
	 	 	 

 

	Chief Executive Officer	Cayman Islands	Chief Financial Officer
	 	 	 
	 	 	 

 

     

     

    

 

JAWS MUSTANG ACQUISITION CORPORATION

 

The Company will furnish without charge to each shareholder
who so requests the powers, designations, preferences and relative, participating, optional or other special rights of each class
of shares or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights.
This certificate and the shares represented thereby are issued and shall be held subject to all the provisions of the Company’s
amended and restated memorandum and articles of association, as the same may be amended from time to time, and resolutions of the
Board of Directors providing for the issue of Class A ordinary shares (copies of which may be obtained from the secretary of the
Company), to all of which the holder of this certificate by acceptance hereof assents. The following abbreviations, when used in
the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable
laws or regulations:

 

	TEN COM	—	as tenants in common	UNIF GIFT MIN ACT	—	 	Custodian	 
	 	 	 	 	 	 	 	 
	 	 	 	 	 	(Cust)	 	(Minor)
	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 
	TEN ENT	—	as tenants by the entireties	 	 	under Uniform Gifts to Minors Act
	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	 	 
	 	 	 	 	 	 	(State)	 
	 	 	 	 	 	 	 	 
	JT TEN	—	as joint tenants with right of survivorship and not as tenants in common	 	 	 	 	 

 

Additional abbreviations may also be used though not in the
above list.

 

     

     

    

 

For value received,                                            hereby
sells, assigns and transfers unto

 

(PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER(S) OF ASSIGNEE(S))

 

(PLEASE PRINT OR TYPEWRITE NAME(S) AND
ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S))

 

Shares represented by the within Certificate,
and does hereby irrevocably constitute and appoint                                            
Attorney to transfer the said shares on the books of the within named Company with full power of substitution in the premises.

 

	Dated:	 	 	 
	 	 	 	 
	 	 	 	Shareholder
	 	 	 	 
	 	 	 	NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

 

	Signature(s) Guaranteed:	 
	 	 
	By	 
	 	 
	 	 
	 	 
	 	 

 

THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR
INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE
MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 OR ANY SUCCESSOR RULE).

 

In each case, as more fully described in the Company’s
final prospectus dated [●], 2021 the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain
funds held in the trust account established in connection with its initial public offering only in the event that (i) the Company
redeems the Class A ordinary shares sold in its initial public offering and liquidates because it does not consummate an initial
business combination within the period of time set forth in the Company’s amended and restated memorandum and articles of
association, as the same may be amended from time to time, (ii) the Company redeems the Class A ordinary shares sold in its initial
public offering in connection with a shareholder vote to amend the Company’s amended and restated memorandum and articles
of association (A) that would modify the substance or timing of the Company’s obligation to provide holders of the Class
A ordinary shares the right to have their shares redeemed in connection with the Company’s initial business combination or
to redeem 100% of the Class A ordinary shares if the Company does not complete its initial business combination within the time
period set forth therein or (B) with respect to any other provision relating to the rights of holders of the Class A ordinary shares,
or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective Class A ordinary shares in connection with a tender
offer (or proxy solicitation, solely in the event the Company seeks shareholder approval of the proposed initial business combination)
setting forth the details of a proposed initial business combination. In no other circumstances shall the holder(s) have any right
or interest of any kind in or to the trust account.Exhibit 4.3

 

[FACE]

 

Number

 

Warrants

 

THIS WARRANT SHALL BE VOID IF NOT EXERCISED
PRIOR TO

THE EXPIRATION OF THE EXERCISE PERIOD
PROVIDED FOR

IN THE WARRANT AGREEMENT DESCRIBED BELOW

 

Jaws Mustang Acquisition Corporation

Incorporated Under the Laws of the Cayman
Islands

 

CUSIP [               ]

 

Warrant Certificate

 

This Warrant Certificate certifies
that [               ], or registered assigns,
is the registered holder of [               ] warrant(s)
(the “Warrants” and each, a “Warrant”) to purchase Class A ordinary shares,
$0.0001 par value (“Ordinary Shares”), of Jaws Mustang Acquisition Corporation, a Cayman Islands exempted
company (the “Company”). Each Warrant entitles the holder, upon exercise during the period set forth
in the Warrant Agreement referred to below, to receive from the Company that number of fully paid and non-assessable Ordinary Shares
as set forth below, at the exercise price (the “Exercise Price”) as determined pursuant to the Warrant
Agreement, payable in lawful money (or through “cashless exercise” as provided for in the Warrant Agreement)
of the United States of America upon surrender of this Warrant Certificate and payment of the Exercise Price at the office or agency
of the Warrant Agent referred to below, subject to the conditions set forth herein and in the Warrant Agreement. Defined terms
used in this Warrant Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement.

 

Each whole Warrant is initially exercisable
for one fully paid and non-assessable Ordinary Share. Fractional shares shall not be issued upon exercise of any Warrant. If, upon
the exercise of Warrants, a holder would be entitled to receive a fractional interest in an Ordinary Share, the Company shall,
upon exercise, round down to the nearest whole number the number of Ordinary Shares to be issued to the Warrant holder. The number
of Ordinary Shares issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of certain events as set
forth in the Warrant Agreement.

 

The initial Exercise Price per one Ordinary
Share for any Warrant is equal to $11.50 per share. The Exercise Price is subject to adjustment upon the occurrence of certain
events as set forth in the Warrant Agreement.

 

Subject to the conditions set forth in the
Warrant Agreement, the Warrants may be exercised only during the Exercise Period and to the extent not exercised by the end of
such Exercise Period, such Warrants shall become void. The Warrants may be redeemed, subject to certain conditions, as set forth
in the Warrant Agreement.

 

Reference is hereby made to the further
provisions of this Warrant Certificate set forth on the reverse hereof and such further provisions shall for all purposes have
the same effect as though fully set forth at this place.

 

This Warrant Certificate shall not be valid
unless countersigned by the Warrant Agent, as such term is used in the Warrant Agreement. This Warrant Certificate shall be governed
by and construed in accordance with the internal laws of the State of New York.

 

     

     

    

 

	 	JAWS MUSTANG ACQUISITION

 CORPORATION
	 	 	 
	 	By:	
	 	Name:	
	 	Title:	                                           
	 	 	 
	 	CONTINENTAL STOCK TRANSFER &

 TRUST COMPANY, 

AS WARRANT AGENT
	 	 	 
	 	By:	
	 	Name:	 
	 	Title:	 

 

     

     

    

 

[Form of Warrant Certificate]

 

[Reverse]

 

The Warrants evidenced by this Warrant Certificate
are part of a duly authorized issue of Warrants entitling the holder on exercise to receive [               ]
Ordinary Shares and are issued or to be issued pursuant to a Warrant Agreement dated as of [●], 2021 (the “Warrant
Agreement”), duly executed and delivered by the Company to Continental Stock Transfer & Trust Company, a New
York corporation, as warrant agent (the “Warrant Agent”), which Warrant Agreement is hereby incorporated
by reference in and made a part of this instrument and is hereby referred to for a description of the rights, limitation of rights,
obligations, duties and immunities thereunder of the Warrant Agent, the Company and the holders (the words “holders”
or “holder” meaning the Registered Holders or Registered Holder, respectively) of the Warrants. A copy
of the Warrant Agreement may be obtained by the holder hereof upon written request to the Company. Defined terms used in this Warrant
Certificate but not defined herein shall have the meanings given to them in the Warrant Agreement.

 

Warrants may be exercised at any time during
the Exercise Period set forth in the Warrant Agreement. The holder of Warrants evidenced by this Warrant Certificate may exercise
them by surrendering this Warrant Certificate, with the form of Election to Purchase set forth hereon properly completed and executed,
together with payment of the Exercise Price as specified in the Warrant Agreement (or through “cashless exercise”
as provided for in the Warrant Agreement) at the principal corporate trust office of the Warrant Agent. In the event that upon
any exercise of Warrants evidenced hereby the number of Warrants exercised shall be less than the total number of Warrants evidenced
hereby, there shall be issued to the holder hereof or his, her or its assignee, a new Warrant Certificate evidencing the number
of Warrants not exercised.

 

Notwithstanding anything else in this Warrant
Certificate or the Warrant Agreement, no Warrant may be exercised unless at the time of exercise (i) a registration statement covering
the issuance of the Ordinary Shares to be issued upon exercise is effective under the Securities Act and (ii) a prospectus thereunder
relating to the Ordinary Shares is current, except through “cashless exercise” as provided for in the Warrant
Agreement.

 

The Warrant Agreement provides that upon
the occurrence of certain events the number of Ordinary Shares issuable upon exercise of the Warrants set forth on the face hereof
may, subject to certain conditions, be adjusted. If, upon exercise of a Warrant, the holder thereof would be entitled to receive
a fractional interest in an Ordinary Share, the Company shall, upon exercise, round down to the nearest whole number of Ordinary
Shares to be issued to the holder of the Warrant.

 

Warrant Certificates, when surrendered at
the principal corporate trust office of the Warrant Agent by the Registered Holder thereof in person or by legal representative
or attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations provided in the Warrant
Agreement, but without payment of any service charge, for another Warrant Certificate or Warrant Certificates of like tenor evidencing
in the aggregate a like number of Warrants.

 

Upon due presentation for registration of
transfer of this Warrant Certificate at the office of the Warrant Agent a new Warrant Certificate or Warrant Certificates of like
tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s) in exchange for this Warrant
Certificate, subject to the limitations provided in the Warrant Agreement, without charge except for any tax or other governmental
charge imposed in connection therewith.

 

The Company and the Warrant Agent may deem
and treat the Registered Holder(s) hereof as the absolute owner(s) of this Warrant Certificate (notwithstanding any notation of
ownership or other writing hereon made by anyone), for the purpose of any exercise hereof, of any distribution to the holder(s)
hereof, and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the contrary.
Neither the Warrants nor this Warrant Certificate entitles any holder hereof to any rights of a shareholder of the Company.

 

     

     

    

 

Election to Purchase

 

(To Be Executed Upon Exercise of Warrant)

 

The undersigned hereby irrevocably elects
to exercise the right, represented by this Warrant Certificate, to receive [               ]
Ordinary Shares and herewith tenders payment for such Ordinary Shares to the order of Jaws Mustang Acquisition Corporation (the
 “Company”) in the amount of $[               ]
in accordance with the terms hereof. The undersigned requests that a certificate for such Ordinary Shares be registered in the
name of [               ], whose address is [               ]
and that such Ordinary Shares be delivered to [               ]
whose address is [               ]. If said [               ]
number of Ordinary Shares is less than all of the Ordinary Shares purchasable hereunder, the undersigned requests that a new Warrant
Certificate representing the remaining balance of such Ordinary Shares be registered in the name of [               ],
whose address is [               ] and that such Warrant
Certificate be delivered to [               ], whose
address is [               ].

 

In the event that the Warrant has been called
for redemption by the Company pursuant to Section 6.2 of the Warrant Agreement and a holder thereof elects to exercise
its Warrant pursuant to a Make-Whole Exercise, the number of Ordinary Shares that this Warrant is exercisable for shall be determined
in accordance with subsection 3.3.1(c) or Section 6.2 of the Warrant Agreement, as applicable.

 

In the event that the Warrant is a Private
Placement Warrant that is to be exercised on a “cashless” basis pursuant to subsection 3.3.1(c) of the
Warrant Agreement, the number of Ordinary Shares that this Warrant is exercisable for shall be determined in accordance with subsection 3.3.1(c)
of the Warrant Agreement.

 

In the event that the Warrant is to be exercised
on a “cashless” basis pursuant to Section 7.4 of the Warrant Agreement, the number of Ordinary Shares that
this Warrant is exercisable for shall be determined in accordance with Section 7.4 of the Warrant Agreement.

 

In the event that the Warrant may be exercised,
to the extent allowed by the Warrant Agreement, through cashless exercise (i) the number of Ordinary Shares that this Warrant is
exercisable for would be determined in accordance with the relevant section of the Warrant Agreement which allows for such cashless
exercise and (ii) the holder hereof shall complete the following: The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant Certificate, through the cashless exercise provisions of the Warrant Agreement, to receive Ordinary
Shares. If said number of shares is less than all of the Ordinary Shares purchasable hereunder (after giving effect to the cashless
exercise), the undersigned requests that a new Warrant Certificate representing the remaining balance of such Ordinary Shares be
registered in the name of [               ], whose address
is [               ] and that such Warrant Certificate
be delivered to [               ], whose address is
[               ].

 

[Signature Page Follows]

 

     

     

    

 

	Date:                , 20                	 
	 	 
	 	(Signature)
	 	 
	 	(Address)
	 	 
	 	(Tax Identification Number)
	 	 
	Signature Guaranteed:	 
	 	 

 

THE SIGNATURE(S) SHOULD BE GUARANTEED BY
AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED
SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 UNDER THE SECURITIES EXCHANGE ACT OF 1934, AS AMENDED).

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