s vs 4s

[archizzzz]

i have a couple air cooled 911's and i am lookn for a dd thinking 991 and wounder about s vs 4s also there are a fair number of comments 997 vs 991 refresher course please

[Luccia at Pelican Parts]

Some good info on the 997 and 991 in the threads below:

http://forums.pelicanparts.com/porsche-996-997-991-forum/734694-used-991-vs-997-a.html
http://forums.pelicanparts.com/porsche-996-997-991-forum/836704-997-market-prices.html