Head to Grand Prix, choose Ferrari (the red car) and Kimi Räikkönen.
Select Spain (Circuit de Catalunya) as your track.
In the race settings, you can change a few to make things easier/quicker:
> Weather: Clear
> Race Length: 3 Laps
> Rules and Flags: Off
> AI Difficulty: 0 (Very Easy)
Complete the race and if you win, this will unlock.
Side note: The "Thomas" in this Achievement refers to this: