Car dealer

Sonic Automotive

(SAH) - Get Report

said its chief financial officer, E. Lee Wyatt Jr., will leave Sept. 6 to join

Sara Lee's

( SLE) apparel spinoff.

Charlotte, N.C.-based Sonic said Wyatt had been its finance chief since April 2003. The company said it would search for a replacement.

Wyatt will become finance chief at Sara Lee Branded Apparel, the Winston-Salem, N.C.-based clothing spinoff of Chicago conglomerate Sara Lee. Sara Lee said in February 2005 it would focus on food, beverage and household products. The spinoff of Sara Lee Branded Apparel is due to be completed between July and September of 2006.

On Tuesday, Sonic shares added 42 cents to $23.72, and Sara Lee's stock slipped a nickel to $19.76.