Gordon was laid down the fastest lap with a circuit of 182.009 mph (30.46 seconds) in his No. 7 Chevrolet. McMurray drove an unnumbered primer colored car to a fast lap of 178.149 mph (31.12 seconds).
With the new testing rules NASCAR has imposed this year, drivers covet the opportunity to gain extra time on the track.
"It was nice coming out here to Atlanta to do a tire test today," McMurray said. "We brought a brand-new car out here so we were able use this first part of this as a shake-down run. We used the first couple hours to get the car balanced, so it is very beneficial to have this opportunity."
To see McMurray, Gordon and the stars of the NEXTEL Cup series battle for 500 miles in the Bass Pro Shops 500, call (877) 9-AMS-TIX, (770) 946-4211.