But the thing is, its not for younger people to buy decent cars, its for their parents to buy them the car, or share their car with them, its a more effective marketing, 'peace of mind' tool than an effective crash/danger reducing device. God knows you dont need a heartbeat meter on a volvo key to know if someone/thing is in the car or not, but people still buy it. The 80mph isn't too bad, I think total control on performance to the speed limit or the GPS idea is going too far, its clear that a limit, albeit at 80mph is better than no limit at all. The music limit is a good idea too as (depending on actually how loud it is) can stop the music drowning out the noise of other cars/beeps etc.