Nail’d it!
Finish the downhill car chase on Plantation level without damaging car too much.

You can do this achievement  after you have burned a bunch of marijuana fields then you have to escape by driving a SUV.

Try to avoid taking too much damage from your vehicle. If your wind shield is broken that means you have taken too much damage. You can just start a new and  “Load Last Checkpoint” of the game when that happens.

To make it easy for you to do this, you can just stay away from the enemy vehicle as far as possible. Just back up your car when they begin shooting at you. Take your time and slow down. When you reach the area with a guy shooting at you behind the gate. Just move back until he stops shooting then hit the pedal smash through the gate killing the gunman. Once you reach the end where your vehicle stops, you should earn this achievement.

If the achievement did not popout, this means that your vehicle has taken too much damage. Just reload the last checkpoint.

This should earn you 15G for the Xbox 360 and a Bronze trophy for the PlayStation 3.

If you are still having problems you can watch the video guide here:  Nail’d it! Achievement/Trophy Guide