August 17, 2008: The Joe Gibbs Racing team was caught cheating by placing magnets beneath the gas pedals of two of their cars. The magnets prevented the engines from reaching full acceleration, hiding the full power of the vehicle during a NASCAR test.FOXNews.com: NASCAR Uncovers Cheating by Joe Gibbs Racing (August 18, 2008)

Because of a large number of recent wins by Toyota cars, NASCAR had asked the team to reduce their engines by 15 horsepower to even the competition. The magnets were intended to make it appear as though the power had been reduced by more than it actually had.FOXNews.com: NASCAR Uncovers Cheating by Joe Gibbs Racing (August 18, 2008)

"Let me just say that, first and foremost, that that was a really poor, foolish decision on the part of our key guys there at JGR. I want to apologize to NASCAR, to our partners, to Toyota guys. A couple guys chose to make a decision there that really impacts all of us."—J.D. Gibbs, team presidentFOXNews.com: NASCAR Uncovers Cheating by Joe Gibbs Racing (August 18, 2008)