The Evaluation Test happens once you've completed your initial profile. You'll drive a lap of Monza as fast as you can for the game to determine a difficulty level for you.
Monza is a pretty fast circuit so you can take certain turns without lifting. All you need to do for this is to complete the test. You can go off-track, spin, whatever, just cross the line and you're done.
If you want a second achievement, you can get
The Hardcore Racer achievement in F1 2014 worth 55 pointsBe recommended for the hardest preset Difficulty in the Evaluation Test. and I got this by simply coming first out of everyone, which involved a lot of diving down in front of the other cars to steal their place. Practise makes perfect there but you can always re-do the test from the main menu at any time.