Having stupidly reached an indicated 169 mph on an, err, autobahn on a bike* I can tell you that a slight bend felt like a hairpin - and that's twice as fast as most people drive. Add another ton on top and you're talking suicide/manslaughter on any highway in a car or on a bike. TT racers on the IOM can reach a little over 200 mph, and as far as I'm aware the fastest a car has gone on the public roads in Britian was a Jap guy trying to break 200 on a straight section of the A1 many years ago.
*Never again.
Just ridiculous, buy a nice car and do you own little touches to it, but don't waste that amount of money on something the car once did but you can't ever do.
