NASCAR fans understand the danger of a sport in which speeds approach 200 mph and drivers are racing door-to-door and trading paint on a regular basis.
Indeed, a major part of NASCAR's appeal has always been the element of danger. Fans often cheer for wrecks and some race-goers are disappointed if they have the misfortune of attending a clean race.
Thankfully, crashes as horrific as the ones shown here are few and far between. But when it comes to racking up the YouTube playcounts these bone-rattling NASCAR clips lead the way.
Without further ado, I present the 13 scariest crashes in NASCAR history.