Road safety is an admirable goal, but that's an issue that you tackle with liability law, car registration and inspection regulations, road users code &c. The DMCA is such a badly written piece of law that lends itself to overreach, and it doesn't need to be extended to yet another area.
Besides, people have been tuning their cars for 100 years now, you'd think that by now the police had some experience keeping the worst specimens of the public roadways.
Besides, people have been tuning their cars for 100 years now, you'd think that by now the police had some experience keeping the worst specimens of the public roadways.