This achievement obviously requires Kinect, so make sure you have your Kinect connected before you enter the main menu
Once the game has loaded and you are at the 'Press
' screen wave your hand left and right to enter the Kinect menu. Now select Hot Lap
,the car and track you pick do not matter as the achievement will pop at the start of the race so pick which ever you prefer.
Once the race has loaded select Start Race
and once the countdown has finished the achievement will pop.You do not need to finish the race
Here's a video demonstration. Luckily you cannot see me :P