Slick Moves Like JaggerG 25

This one requires the powerup that looks like a big drop of black oil. Drop it behind you, and when an enemy hits it, they'll spin out and you'll get a notification on screen giving you 50xp at the same time. Make 20 opponents spin out, and the achievement will pop right away. Best dropped in the middle of straights, and tight corners. Should come naturally during your career runs, but if not you can finish up in split screen/free roam with a second controller.