Go into car setup. Go into "Gear Ratios" and change the two down at the very bottom to "89" and "4.45" respectively. Note: "4.45" for the bottom one and "89" for the one above it. Accept the changes, start the race, and by the end of the back stretch on the first lap, you can get up to and over 200 mph.

Go into car setup. Then, select "Auto Transmission". Set the tire pressure to "30". Loosen or tighten the car as desired. Finally, go to the gear ratios. Leave the first gear as is. Set second gear to "1.85", third gear go "1.35", fourth gear to "1.01" or "1.02", and leave rear end as is. When you start the race, second and third gear will be a little slow, but when you get to fourth you will blow them away. At the end of the first lap you should be going about 190 to 195 mph.