Porsche History in Miniature
I've had a thing for old Porsches since I was a teenager and my Dad and I located and restored a tired, un-wired 1977 911S. (By restored, I mean, uhm, paid the right people to fix the hard stuff. I mean, we vacuumed the carpets and washed it at least several times on our own. Honest.) One rebuilt flat six engine later, it ran like it was born to circle the Nürburgring.
Stumbling around the net looking for some year/model info, I bumped into this fun page:
40 Years with the Porsche 911 - A miniature review
It's a great, quick read and gives you an abridged view of the 911's enduring character and colorful variation through time and car consumer trends.
FWIW, I still think Corgi makes the best-looking small scale miniatures. Just ask any airport gift shop cashier which ones sell best!