[streetracinchik]

I'm not sure about ALL GM vehicles, but I know that the Vette, Camaro, & Firebird have had then for some time.. If the computer throws a code, it records what gear, speed, rpms & some other things. It keeps a record of the number of times you hit the rev limiter(SP) & some cars keep track of # of times above a certain speed. There is a dealer about 2 hrs from me who let 2 guys take a new SS out for a test drive.. They wrecked it!! When they recovered the data, it showed they had been doing over 120 (124, I think) when they lost control b/c of water supposedly. They are now suing or have sued the guy for the price of the car..