Can anyone please tell me a good way to test and see if I need a new clutch. I purchased my 05 M6 from a friend of mine and he tells me he thinks it needs a new clutch. I'm not so sure. It has 86k on it, but the clutch doesn't seem to slip. If I'm cruising around 70mph and drop it to 3rd it'll throw me into my seat. I have heard that is one way of testing. I don't wanna drop a grand on a new clutch if I dont really need one. Any help will be appreciated......thanks guys!!!