STATE OF TEXAS §
COUNTY OF DALLAS §
POWER OF ATTORNEY
Know all men by these presents, that I, WILLIAM M. SAMS, a Director of AMERICA’S CAR-
MART, INC., a Texas corporation, do constitute and appoint WILLIAM H. HENDERSON and
JEFFREY A. WILLIAMS my true and lawful attorneys-in-fact, with full power of substitution, for me in
any and all capacities, to sign, pursuant to the requirements of the Securities Exchange Act of 1934, the
Annual Report on Form 10-K for AMERICA’S CAR-MART, INC. for the fiscal year ended April 30,
2010 and to file the same with the Securities and Exchange Commission and National Association of
Securities Dealers, Inc., together with all exhibits thereto and other documents in connection therewith, and
to sign on my behalf and in my stead, in any and all capacities, any amendments to said Annual Report,
incorporating such changes as said attorneys-in-fact deem appropriate, hereby ratifying and confirming all
that said attorneys-in-fact, or their substitute or substitutes may do or cause to be done by virtue hereof.
In witness whereof, I have hereunto set my hand and seal this 18th day of June, 2010.
/s/ William M. Sams
WILLIAM M. SAMS
Before me this 18th day of June, 2010, came WILLIAM M. SAMS, personally known to me,
who in my presence did sign and seal the above and foregoing Power of Attorney and acknowledged the
same as his true act and deed.
/s/ Mary Sellner Thomas