Originally Posted by imageWIS
because I personally think that the Cayman S is a better overall sports car than the M3.
It's a lot more tout and precise, whereas the M3 needs to be driven with brutish force to get it going where you want it to go. Drive and M3 and a Cayman, and see which one is easier to corner, which one goers exactly where you want it to go...because it won't be the M3.
I've never driven a CSL M3, but I've driven the US Spec E46 M3 and Cayman S, and again, I agree with your assessment; however, I would still pick the M3 CSL (should it be available). Not everyone wants a 2-seater. I like the spaciousness and practicality of the M3; however if I could have two cars, I'd have both an M3 and probably a Lotus, but if it's just one, and the choices are M3 CSL v Cayman S, I'd take the M3 CSL.
The Cayman is such a well designed car that Porsche purposely made the first and last gears taller than the 911's which makes the car slower and gave it no LSD so that it wouldn't corner faster and better than a 911.
I'm still not 100% with you guys on the LSD argument. The open diff on the rear axle would be sending power to the path of least resistance, which would be the wheel with the least traction, or the inside rear wheel while cornering. Too much throttle during the corner means some wheel spin on the inside rear, but just the right amount of throttle means power through and no wheel spin. The LSD would make the car easier to drive faster, but without, it is still a competent car. For anyone who has driven one, you'll agree with me that the Cayman S is far from overpowered, so with 8" or wider rubber, you should not be having major wheel spin problems on the track. If Porsche updates the S with more power and/or a revised power band, then I could see the need for the LSD.
Also, the cost of adding a Torsen type diff (most of the benefits, least of the maintenance worries) is not high, compared to the cost of the car and the cost difference between the Cayman S and 911's. And, although this should go without saying, but on the steet you will not see any benefit from the LSD. You'll probably end up with a car more prone to understeer by just slapping an LSD on the car and driving around the street.