Andy
After all your help since owning my SL, a chance to give something back at last....
I nearly bought a 996 about 3 years ago, then my wife walked out after conducting an affair for several months. Having to pay a mortgage with only 1 salary was bad enough, never mind financing a 996 as well! Anyway....
I test drove a 3.4 C4 manual, which was a beat to drive. It felt so sure footed and composed, really solid handling car, whereas the C2 I drove immediately after felt a little nervous at the front in comparison. Its true the boot space is a little tight, but there is space behind the main seats if you fold the rears down (which, unless you have small children is what you'll most likely do...)
I also drove a C2 Tip. Didn't like it - at all. As mentioned, the front felt skittish and nowhere near as planted as the C4, and I just did not like the gearbox at all. It just felt, well, wrong. Unless you intend to commute into a city regluarly in it, I really would suggest a manual. I've driven both a "normal" manual and one with a short shift kit, the latter feeling much nicer and at less than £300, a worthwhile mod.
My money would go on either a C4 or a C4S - I rather like the latter, and it has a sports exhaust as standard. The Porsche sports exhaust gives the water cooled flat 6 a lovely bark, something sadly missing on the OEM exhaust cars.
A Turbo would be on my dream list, for sure. I've driven a friends in Belgium and France, and have driven several at Bruntingthorpe in excess of 180mph - all felt utterly solid.
Take your pick, as there are loads out there.
Best of luck in your search - I'm ever so slightly jealous of your predicament.
All the best
Greg
The RMS issue is well documented and easily fixed. What isn't however is the crankcase weaknesses - this is simply down to poor manufacturing techniques. Apparently, it has got better with the 3.6 and also in the 997 engines.
Buy a Porsche warranty. If needed, it will pay for itself many, many times over.