Kenny Wallace’s No. 78 car pours out smoke as he pulls into pit road during the Coca-Cola 600 at Lowe’s Motor Speedway in Concord May 27, 2007. (Greg Kahn / Independent Tribune)
Kurt Busch is knocked out of the race after he wrecks in the backstretch during the Coca-Cola 600 at Lowe’s Motor Speedway in Concord May 27, 2007. (Greg Kahn / Independent Tribune)