Start up a Grand Prix race. I would suggest picking a shorter track to allow you to get back to the pits as quick as possible. When you are in the loading screen ensure that:
Race Settings- Rules: On
Assists-Pit Assist: Off
-Pit Release: Off
Now when you come back round to the pit stop and enter the pits ensure to be slow and press
to engage the pit limiter. Now whilst you are in the pits you need to do a manual start so you need to hold
and
. Once hit says release clutch let go of
. Your car will automatically drive to the exit and as soon as you cross over the exit line press
again to disengage the pit limiter.
You will then get the achievement in the race.
NoteIt took me a few laps to get this, and I tried a few things. When it popped I had spoke to Jeff and informed him I was boxing that lap and also made sure that I released the clutch and disengaged the pit limiter as soon as possible.