You can blame it on PC and Playstation games like "Need for Speed" and others like it. People now have a taste of high speed racing, but the only problem is that there aren't any consequences. I'm not suggesting that people play a PS2 game, then grab the car keys and say: "Let's race someone and the hell with the consequences." It's a subtle thing. When you do come up againsta guy with a hot car, you're more likely to throw caution to the wind, having been a lot further in the virtual realm.
Just a though, I could be wrong.