CAR is indeed the best car magazine in the world, and why I subscribe to it. They have the best pictures (anyone who read their C4S test in Scotland will know that), well written articles and lots of great details, just check out the 997 vs 996 on page 11 and 12.
Anyway, as promised, here's the rest of the article
(The images are larger than they appear so right click and save as, or click on attachment)