Hmm, when I first bought it back in March 2005, the first one I bought was a Dover White 1985 Mazda RX-7 with 180 bhp. I loved that car so much! Used it for a ton of different race series, and got it up to around 260 bhp, tuned suspension, transmission, the whole lot.
After restarting (Yeh I've never completed GT4), I bought a Mitsubishi Lancer Evolution I GSR, and this packed a healthier 220 bhp. I loved this in the same way as I did the RX-7, and used it for a lot of races.
Finally, in my last two (or three) restarts, I have just gone ahead and progressed with the licenses, using the Lupo, Kusabi and the Cougar in races. Although I must say, out of those 3, the Kusabi impresses the most! 👍
Joe