Brad Keselowski was docked 10 points, and crew chief Paul Wolfe was fined $15,000 for his car failing postrace measurements after Keselowski's third-place finish Sunday at Michigan International Speedway.
The penalty means little beyond the fine. With four victories this year, Keselowski is safely in the Chase for the Sprint Cup.
The Team Penske car failed the inspection station that measures tire camber, axle housing, alignment, rocker panels and the main frame rail. Keselowski's car had more rear toe (skew) than is allowed.
Team Penske will not appeal the penalty.
The rules package used at Michigan required cars to have no rear skew during prerace inspection and allowed for up to 0.15 degrees of rear toe after the race. Keselowski's car had between 0.16 degrees and 0.25 degrees of rear toe, which resulted in the penalty.
Cars that had failed the rear toe measurements earlier this year were more than 0.1 degrees outside the postrace tolerance, resulting in a more harsh penalty of 15 points with a $25,000 fine.