PGR 4
60 Achievements
1,250
Xbox 360
Back it Up!
In a split-screen Street Race, finish 1st and 2nd in reverse gear against at least one AI opponent.
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How to unlock the Back it Up! achievement in PGR 4 - Definitive Guide
In a multiplayer race, both players need to cross the finish line in reverse. Set up the race with only 1 AI, and once the race starts, both players need to stay together because the second player only has 15 seconds to cross the line once the first player crosses. Once you can see the line put on your brakes and stop, turn around, and back up across the line.