CONSENT OF INDEPENDENT AUDITORS The Board of Directors Smithway Motor Xpress Corp.: We consent to incorporation by reference in the Registration Statements (Nos. 333-10249, 333-10251, 333-21253, and 333-81855) on Form S-8 of Smithway Motor Xpress Corp. of our report dated February 3, 2000, relating to consolidated balance sheets of Smithway Motor Xpress Corp. and subsidiaries as of December 31, 1999 and 1998, and the related consolidated statements of earnings, stockholders' equity, and cash flows for each of the years in the three-year period ended December 31, 1999, which report appears in the December 31, 1999 Annual Report on Form 10-K of Smithway Motor Xpress Corp. /s/ KPMG LLP