oh yeah, as far as reliability and maintenance on a porsche, I would say it's less than a BMW/Mercedes/Audi, and about on par with an NSX, if not less.
The maintenance intervals are longer, and there are fewer parts that need replacing. Parts are cheap and the cars are pretty easy to work on, though there are are a lot of good independents that do work for a decent rate.
Porsches got a really bad rep for engine failures due to IMS failures, but this was not as widespread as it has been implied. If you're going to do a lot of track duty with some of these IMS equipped Porsches, it's worth taking preventative measures to safeguard the motor. This is the same mentality many Primers have with their NSXs (oil pan baffle, etc.).
For what it's worth, my Cayman does not have a warranty (though I considered purchasing 3rd party warranty coverage and passed), and I've only put about 7k miles on it in the past 3 months. I did my due diligence with PPIs and plan to maintain it as needed, but understand that I need to "pay to play"; this is NOT a honda civic. So far, no problems though 
That said, I agree that If anyone is considering a Porsche, a CPO Porsche is THE way to go. Arguably the best warranty possible and you don't have to pay the new-car premium.
Now, if only I could figure out how to get 33 MPG like RYU 
