145k miles on my daily driver which I bought with 38k miles in 99.
Minor repairs at failure include; water pump at 65k, Radiator at 85k (end-tank rubber gasket leak), Radiator Fan Motor at 90k, Battery at 80k (replaced with Sears Diehard and replaced again under warranty at 122k), starter motor at 110k and driver-side window alignment bracket at 90k.
Wear and tear repairs include; replacing the clutch twice (at 90k and at 132k with OEM), 2 sets of front brake rotors and pads (at 60k and at 130k), 1 set of rear brake rotors and pads at 60k, drive-shaft U-joints at 80k, plugs and belt at 90k, front suspension ball joints at 130k, front and rear sway bar bushings at 130k and plug wires at 135k.
Major repair more recently; internal engine tapping sound at 135k that became progressively louder. Figured it may be a lifter.... Ordered a GM HOT cam, lifters and all new parts (water pump, opti, cam sprockets and chain, front cover etc.) that would be touched during cam replacement. At tear-down the failure turned out to be the #5 exhaust valve lifter roller and cam lobe. Did all the work myself in my garage over X-Mas vacation as the dealer quoted $3200 for the job.
The new cam really woke up the engine (after a PCM reflash) and I plan to drive it a lot longer than I previously intended to - love the C6 but can't really justify the new car payment.
The driver side seat and clutch-pedal bushing are overdue for replacement and the front-cap paint has seen a few too many bugs and stones....
My previous vette was an '89 6-speed that I had from 55k to 135k miles. The only failure was that the A/C compressor froze at 80k. Never needed to replace the clutch or tear into the engine.....