Those are legs sticking up after crash.

Massive Rear-ending Crash

Motorcyclists crash at an intersection

(NSFW) Car crash with train

3 dead in this crash

Deadly head-on crash in Lithuania, Mercedes-Benz gets caught

Police dashcam shows crash (article in comments)

Multi-vehicle crash including Kia, school bus, leaves 2 injured

high-speed pursuit ends in fatal crash.

Crash at intersection

Crazy crash sends man flying

(NO SOUND WARNING) Truck Driver Survives In A Horrible Car Crash