The problem they had is when they came out in the RWD only option (close to 2 years iirc before the AWD was an option), they were absolutely mental to handle for your joe public driver, as well as it was just after the XJ/XF and all the negativity they got for... well not working quite right...
For the same money you could pick up GTR's, 911's, M3/M4's just to name a few proven performance cars.
Yes, I don't see M3/M4 anywhere near as special, was following an M4 yesterday, they do look very much M car on the road, big fat rear-end but in those cold wet conditions he'd of being better off with a 420D every time he was going near power his rear-end was not very happy, just too much power, coming in too fast for RWD especially in close to freezing wet conditions. Whereas the SVR will just put power down amazingly well in such conditions, I'm still quite tame with it where corners are involved as its not ideal trying to learn a car on the roads when they are covered in grit, grease, wet, ice type conditions, too unpredictable but of a corner or in a straight line the SVR puts power down very impressively and I'd imagine GTR is just as good as it too has a very good RWD biased AWD setup. Also a GTR is quite expensive to run, economy, brakes and tyres are expensive and you seem to go through them pretty damn quick. At least the F Types have cheap as chips brakes as they are just cheap solid 1pc disc, unless you get one with ceramics which if you look after will last forever, though pads for ceramics are £1000 for a pair. The steel brakes on the F-Type really are superb cheap, you could change all 4 disc, all the pads and still have change possibly from 1k.
A 30k 911 however would not be very nice, think that puts you in 997.1 territory which have a lot of issues and as such would be expensive to run.
Out of the OP's list my favourite contenders would be:
- 981 Boxster S (Will also suffer very little depreciation)
- F-Type V6 (just buy this, then modify it as the difference between V6 and V6S is hardly noticeable but the V6, V6S and V6 400 all use identical hardware, JLR just use different maps). But if your feeling heroic and are willing to scare the living daylights out of yourself, grab a V8S, can't see them depreciating much more now they seem to have hit bottom at 35-40k,
- M2 (Closer to 40k I suspect but they do seem to be holding money great)
Really depends what you want, example an M2 is a lot more fun, nimble and more predictable to drive than say an M4, but on the flip side the M4 has a nicer interior, a lot more toys and when they do put their power down, they are very quick cars indeed, practically GTR quick if they put the power down.