Similar to Mrrippry above... I'm at 11,800 mi now after 9 months, with two road trips to the southwest. Two concerns that I guess are just the nature of the vehicle... noisy interior for one, mostly road/tire noise I think as on some stretches of very smooth pavement it's ok. These are the 20" Goodyears, and do I correctly understand the Michelins are quieter? I'm a little surprised, maybe naive, not having considered the Cayman would be noisier than my old BMW M3. My hearing is long gone anyway. Secondly I'm concerned about hard landings of the nose. A few minor bumps and scrapes, plus two really hard bottomings that surely must have consequences. I had a post-breakin service back at 5800 mi, now set for the first "official" 10k svc and I will ask about the hard landings and tire wear. And I'm about ready for the T-Design memory module, tired of the engine start/stop button.
Ah, should mention there was a service/repair matter just after that first servicing. Electronic failure in the front BCM which was eventually replaced. Front turn signal failure warning, with the dash indicators blinking double-speed, and often a failure to start the engine with a message the key could not be located. This took three days to sort out, with each day a 180-mi round trip to the dealer.