Q: is there a way to make the car faster without upgrade the car... wut i mean is how should i drive to make the car faster
A: Make your car lighter. If possible, strip out everything not essential to the functioning of the car - for example: stereos, air con (don't run that, if poss strip it), seats (cumon now, you don't really need those!), and discard of any passengers. Go on a low-fat diet and you'll be sure to get and extra 5-10bhp from your vehicle. Hope that works for you!