I keep doing the Gran Turismo allstars race(all the way to the right) do the complete circuit(10 races) you get $10grand for first, $50k bonus at end for getting first and a bonus car.
yeah at some point did you guys have to do races just for money? i think the game was engineered perfectly. there was times when money was a little tough, but i never had to just race over and over for money. awesome game!