I agree excessive speeding is not worth the risk if you have a 350Z or 370Z what do you have to prove. Most people know there not as fast.
I think 5mph in a 30 and below zone or 10 mph in a 40 or above over the limit is acceptable depending on conditions and traffic flow.
I had a guy in a BMW 118d this morning having a go. All the way to work. Got to airport tunnels in Manchester and he shoot off, I kept up at a safe distance a little over the limit because I want to get past a truck carrying a load of muck but he nearly took out another car because he tried so hard to get away from me when he went past the truck he was going too fast to pull in without hitting the car in front, so he went wrong side of the road with oncoming traffic few car lengths away.
Utter idiot.
Could of cause a serious accident and make me late for work.
Really you think a BMW 118d has the jump on a 370Z. Idiot