Stunt choreography is a business that really needs to be done properly. A failure in any one area has the potential to not just ruin the stunt and waste a film or TV show's budget, but could lead to a member of the cast or crew getting seriously hurt (or even killed).
We won't spoil what happens in this particular video, which looks like it's from a set somewhere in China (we hear Mandarin at the end, but clear, unaccented English in the beginning), buy it's safe to say that this particular stunt has gone very, very wrong. It's difficult to know if the failing was with the stunt driver or in the planning, but it seems clear that this video wasn't staged – something really did go wrong here, judging by the chaos following the stunt.
It's unclear if anyone was injured inside the car, although it seems that there were no injured bystanders. Take a look and let us know what you think.