A clutch is a wear item that will not be covered under warranty, regardless.
That said, my BMW is at 147k miles without a clutch replacement, and it's lived a pretty hard life (track events, etc). In fact, in 20 years of driving, I've never replaced a clutch in a car I owned, and I've never owned a car with less than 50k miles (well, okay, I just bought a brand new car last year, so of course its clutch is still going strong).
That said, my BMW is at 147k miles without a clutch replacement, and it's lived a pretty hard life (track events, etc). In fact, in 20 years of driving, I've never replaced a clutch in a car I owned, and I've never owned a car with less than 50k miles (well, okay, I just bought a brand new car last year, so of course its clutch is still going strong).