So I thought I'd kick off this new section with a simple discussion.
Classic Porsches.
1: Which is the road version you'd most like to own AND drive.
2: Which is the racing car you'd most like to own and race.
Roadgoing
I know the 2.7 RS lightweight is arguably the best Porsche of all time and it was made in a "touring" version - kind of similar to the much later 959 which came in "sport" and "comfort". I also think this is the most common template for replicas. The 550 Spyder replicas usually sport fibre bodies and VW engines, so do not count.
For myself its a hard choice. I have a soft spot for the later 3.0 Carrera (1976/77), but I really wouldn't mind an earlier 2.4 S which I suspect would give a more pure driving experience.
Interestingly the 2.4 has similar performance to my own 1980 SC and the Carrera is a little faster having 20bhp more.
There is a little orange 2.4S I see about once per month on the road. I am not a huge fan of orange, but looking at the car sends you back into an earlier era. I don't think I would mind much. It is in great nick too. :)
Somehow I am not a huge fan of the ducktail spoiler of the 2.7RS and I suspect that the lightweight may be more of a special weekend car than an every day car. Can't really say though, it's just a feeling.
My SC. (It's 1980, so its a classic too!)
Racing
Well the 917K springs to mind. It's hard to think of another that grabs the imagination like this one.
The only other I can think of immediately is the 908. I sw one race and I loved it. It looked very poised, but not overpowered like the 917.
Here are some images:
917

908

908 beng passed by 956!