I have GT5: P and I think it is amazing. What car did you start with? I started with the Alfa Romeo.
I think it was the Integra.
Then I bought the Ford Focus to get better placement in the final FF race, then a Tuned Cappucino (to my dismay, it was amazingly weak and could not compete in the FF race, just another 60K down the drain), then the Integra again, but I forgot what I used to win the final FF race.