go for a 2.7 over a 2.5, much better engine early 2.5 boxter had know engine faults.
I currently own a Cayman S which we have had since 1yrs old, the car has been fault free for the 2 years we have currently owned it. A mate of mine has had an early 2.7 boxter which he also had from about 2yrs old and kept for 3yrs and again was fault free. He has also owned a Cayenne which he has recently sold after 2 yrs of ownership, and guess what?? Fault free again.
so between us, 3 Porsche cars between the 2 of us totaling 7yrs of ownership all with out any probs.
Yes when the cars are in warrenty, Porsche servicing at main dealers are expensive. But for older cars plenty of specialists around, pads and discs can be had a decent prices from OEM parts suppliers. Tyres are what you cant avoid price wise, but any decent sportie car is in the same situation. Get a price for a tyre for say a golf GTI etc they make your eyes water nearly as much as a tyre for a porsche.
Tyre wear on my Cayman has been great, 25000miles from new and i put some new rubber on the rears (old ones still had 3mm left when taken off) but it was coming to winter so i wanted new tyres for the wife who uses it daily. Front tyres are still on from new, now have 5mm left on em after 34000 miles and the rears are still like new since getting new un’s 9000 miles ago.
So for me 2x rear tyres in 34000miles of use from the car being new (cost £550 to replace the 2), front tyres are still on the originals and as said still have about 5mm left on em. i have had front brake pads replaced at 25000miles (£160), 20k serv by Porsche main dealer £400 and will be due another september next year or when the cars done 40k.
so for me servicing, tyres & pads has cost me just over £1100 on the car from new to 3yrs old. Excluding the cost of the car in the 1st place, i bet sum ut like a focus ST or golf GTI, Astra VXR would cost as much maintance wise. If not more, as i cant see front wheel drive cars that pump out nearly 300HP will be any wear near as good as the Cayman tyre wear wise. The engine being in the middle on the cayman makes it very well balanced, and inturn tyre wear is awsome IMHO