Here is a funny story my dad was telling me about one of his friends.
My dad had to one night, go with his friend to pick up his new car, A toyota supra Twin turbo. He took him, picked up the car and every thing was fine. It was pretty late at night and the motorways were empty. My dad was already cruising infront of his friend at about 100 mph. The next thing he new the supra came flying past at well over 120 mph and accelerated out of site.
About 10 minutes later my dad caught up to his mate to find him doing about 40 mph on the hard shoulder. He pulled over and the both got out and inspected the car. What they found were the tires in shreads.
They called a recovery firm and got his car towed. When they got to the garage, they waited for a while and the mechanic came back to inform them that he had finished. here is the conversation that they had.
Mechanic: Well I have changed the wheels, and its all ready to go
Dad's friend: Cheers mate
M: So thats a pretty nice car you have got there.
DF: Yeah, just got it tonight.
M: So, how fast have you done in her?
DF: Well I have just done 175 on the motorway
M: hahahahahahahahah
DF: is something funny?
M: yeah, The wheels that were on the car were only garunteed up to 120 mph, They can't cope with any excess speed
DF: Oh ****