Out of the Skyline & Lancer the thread initiator chose, I'd go for the 'Group A' homogulation special, the Skyline GTR. They were very popular here in Australia, during the 'Group A' racing days. Which meant they had to make at least 1500 of them & import into Australia at least 200 of them (actually I think they had to sell 200 of them in every country or market that they wanted to race them in, something to do with 'Group A' regulations), for them to be legal to race here in the Group A class. They proved tremendously popular, so a lot more than 200 were imported.
Imagine driving such a beast.
Twin cam
4 valves per cylinder
6 in-line
Twin turbo
intercooled
All wheel drive
All wheel steering
variable traction/torgue/slip for all 4 wheels
multi-link IRS rear end
Twin wishbone front end
Full race ported Fuel injection.
The list is endless.
They ended up so dominating the Group A class, that FIA replaced Group A with the '2 litre Touring Class'.