For this achievement you have to complete the chase in "Highway" level without accidents with other cars.
The chase will be divided into 3 macro phases
- Avoid other cars and reach the truck
- Follow the truck, avoiding crashed cars
- Follow the truck, avoiding signals and works in progress
Don't rush. Never use the turbo, and release
if you need to avoid cars in front of you or you feel trapped by other cars.
In the second and third phase, be sure to stay away from the truck (you have to barely see it on the right part of the screen), as it will suddently change line, decelerating, or crush other cars that will dangerously bounce among the lines.
Note that you can hit barriers or road signals and still get the achievement, as long as you don't touch any other car (I got the achievement despite hitting a container in the third phase).