The Simpsons Hit and Run Wiki

Level 7 Time Trial Race

For this race it's faster to drive backwards and reset your car when touching one of the checkpoints.
On the road in front of kwik-e-mart when going backwards you want to stay on the right side so your reset position gets closer to the starting line. Then reset your car after the gas station building or when hearing the checkpoint trigger sound. Also try turning to the right before reset your car so you'll get a better angle when you'll respawn.

Full Mission Example

After this race go start 7-B.

Before this race you can get the playground stuff.
For this race it's faster to drive backwards and reset your car when touching one of the checkpoints.
On the road in front of kwik-e-mart when going backwards you want to stay on the right side so your reset position gets closer to the starting line. Then reset your car after the gas station building or when hearing the checkpoint trigger sound. Also try turning to the right before reset your car so you'll get a better angle when you'll respawn.

Full Mission Example