How would you go about fixing the problem? I mean. No matter how you raise your kids I don't think it's going to change the way they drive. If a kid is into cars, he's going to want to go fast/faster.
My son could give two shits about fast cars. He's into other things. I don't think he's going to be doing burnouts in his 100 HP car anytime soon or driving like a jackass. That's just not him.