Re: Just curious?
At the risk of jinxing myself, the roadster has been reliable since April 2005. I purchased the warranty after eyeballing the top mechanism, but it has been problem free - warranty never used. In truth, I put the top up in the spring and it stays up until October unless the weather turns bad or I park it outside overnight. Otherwise it spends it time garaged and covered, which saves wear and tear. I bet I cycle it less than 20 times per summer.
It had one recall for the fan, and I had the shift cable loosen up. It was reconnected by my indie shop and the 1st-2nd shift is greatly improved. The only other annoyance was the TPMS warning icon staying on, and it was cheaper to employ a 1"x1" piece of black tape on the dash rather than spend $100 for a dealer calibration that may not have lasted, if it worked at all.
Currently at 57k miles and in addition to the above: replaced tires, replaced battery, flushed radiator coolant and transmission fluid.