WHAT IS WRONG WITH YOU Achievement
WHAT IS WRONG WITH YOU15
Flip five vehicles by shooting their horses.
When driving a carriage and pursued by enemy carriages, press to climb on top of your carriage, which will drive on its own, and then use your revolver to kill the horses of enemy carriages, which will flip and crash. Alternatively (credit to bLaKgRaVy), shooting the horses of your own carriage also counts.