I think you are right about the time and miles. I looked at my extended warranty and it doesn't even cover the the clutch or brakes .
So what kind of power are you putting down to wear it out so fast ?
I just got the car with 28k miles. It is completely stock. It was pretty weird how it happen my buddy was driving and he down shifting to 3rd because of a stop sign and some how he got it in first. He didn't appear to be pressing very hard. There was some clutch smell but not as much as I would of expect for fried clutch. I have smelled worst on my last s197. I manage to limp it home 300 miles. Its weird because my last S197 had 45000 on it and basically every bolt on made and the clutch was fine.