In a race, the most important thing is speed and maneuverability because those two will win you a race. If you have speed, but can't control it, then you can't expect to get ahead of the rest. You need to know how to handle our car well and this means that you need to be fit enough to be able to compete with the best.
Wait for the signal before driving your car like hell. Do overtake your opponents' car as that is the whole idea of the game. You can get more points from close overtake. Try to get the first position as that will unveil new race track for you.