PGR 4
60 Achievements
1,250
Xbox 360
Seat of your Pants
Complete a Hot Lap event in Arcade mode without touching your brake.
25
How to unlock the Seat of your Pants achievement in PGR 4 - Definitive Guide
No Hot Laps are unlocked initially, so once you have unlocked one, go ahead. You just have to complete the lap in under the given time, on any difficulty, with both a bike and car. Wallriding is ok, which is the easy way to do it with a car. For the bike, either try to ride the wall, or just crash in every corner.