Okay - this is pretty much the final version. I need to do a little day-wasting, in order to buy a few cars - two Preludes ('96 Type S and SiR), two old Hondas (N360 and S800), the '92 NSX Type-R, the Mazda 110S L10B, a 1999 Skyline GT-R V-Spec, Stagea RS and Skyline 1500 Deluxe, but that's it.
I should note that you will probably wonder why only 710 (or 719 when I'm done) cars. This is because used cars are counted as if they were new in Arcade mode (and so are duplicates - I'm thinking the black LMP/GroupC cars) and Opels are Vauxhalls (and so are duplicates too). If you know any better - that I've missed testing a car on the car list - do let me know.