I love people's responses to this post - it just shows how views on virtually the same model polarise.
So, here's my opinion to add to the mix.
All 993's are great. Some are (marginally) greater than others and which you feel is better is entirely personal preference. In brief though, I think the following does hold true:
The wide bodied cars look better - the wide hips just add something to the overall aesthetics. IMHO the best looking car Porsche made. For me part of owning the car is how it feels when I drive it and some part of it is how it makes me feel when I open the garage. The wide bodied cars give me a wider grin.
The C4S and 'S' models are dynamically different to each other and both are different again to the narrow bodied cars. Basically the C4S and S are harder rides because of different, lower and hence harder suspension (turbo in the C4S and the sport suspension in the C2S). Many people like the novelty of the C4S package, turbo running gear, turbo Big Red breaks, 4 wheel drive like the turbo and it was therefore more expensive new and felt more exotic.
The C4S has a couple of down sides though. The four wheel drive system, amazing in the day and a huge leap forward over the system in the 964 does make the car heavier and slower (marginal though) but changes the way the car feels. It feels less like a throughbred sports car - take one on a track and you'll feel the difference. To add to the different steering feel (which as with every 4 wheel drive car on the planet is not as good as 2 wheel rear wheel drive feel) the 18" wheels on the C4S are actually Turbo Look and not Turbo alloys. The Turbo Look wheels are not hollow spoked like the Turbo wheels so are heavier than the wheels they copy (fitted as standard to the Turbo) and add to the unsprung wieght.
The C2S drives like a thoroughbred sports car. Nothing I have ever driven (except a Caterham), including fast BMW's, other Porsches (996, 997, 968) feels so much like a pure sports car, on and off the track (though I have never driven a GT3 or RS of any variety). The suspension is the sports option, lowered and harder - yes it is a little hard but IMHO, if you want soft, buy a Land Rover. The wheels in theory were 17" but I have only ever seen one C2S with said wheels, everybody ticked the 18" Turbo wheels as an option - and this makes a big difference because they are the lighter hollow spoke Turbo variety and not the heavier Turbo Look variety on the C4S. Don't get me wrong, the car is perfectly comfortable and anyone who tells you it feels like it will throw you in to a hedge backwards at any moment needs bit more driver tuition - it makes you feel alive, excited at driving the thing. It's a sports car and it feels like a sports car (my 996 C4 felt like a fast bus in comparison).
So, if your emphasis is a little more towards comfort, the C2 may suit. If natural steering feel is not that high up on the agenda, get a C4. If you love the wide body cars but want a tad more comfort than a C2S and steering feel again is not the be all and end all, a C4S could be for you. If you want pure - it has to be a C2S.
Glorious, glorious glorious.
Only my opinion of course - but if there hadn't been a credit crunch I'd still have mine. IF the world ever get's back to normal I'll have another before you can say hollow wheels.
If the world gets better than normal, a 993RS! Now I cmome to think about it, note how all of Porsches most sporty cars are rear wheel drive only (RS', RSR's, Clubsports, GT3's and so on) apart from some odd, though fantastic niches like the (and officianados forgive me if I am wrong) 964 lightened C4 whith variable torque setting controlled in the car (Leichtbau?) and the 959.
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