If you are new to GT2 & start out with 10k with no car then this is the tip for you.
First, buy a used car with either FF/4WD drivetrain that is under 10k, then race it on Sunday Cup until you get about 10k then tune the car's horsepower.
Keep doing that until you think that it is fast enough to beat every races in Sunday Cup, then now keep racing on the Sunday Cup & keep saving the credits until it is enough for a used Mitsubishi Lancer (any Evo).
Then keep racin on Sunday Cup & tune up the Lancer's horsepower once you think it is fast enough, go race 2nd race in Turbo race category. If you win that race you either get a Drag Skyline/ a Nismo, the Drag Skyline worths 250k you can decide either sell it or keep it. I currently have 96 cars with 90 somthing percentage complete.
More tricks, tips and cheats for this game are right here - Gran Turismo 2 cheats
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