All cars and engines pass inspection

All cars and engines taken to the NASCAR Research and Development Center following the Sprint Cup race Sunday at Martinsville Speedway have passed inspection, a NASCAR official confirmed Tuesday afternoon. Cars taken were those of Joe Gibbs Racing’s Denny Hamlin (winner), Penske Racing’s Kurt Busch, and Hendrick Motorsports’ Jimmie Johnson and Mark Martin. Engines taken back were those of Hamlin, Johnson and Busch.