It should be the first frame the whole car is clipped into the mountain, and in this case I don't see that. You can look at the rule for more information.

Double edit to previous previous post - its 45 kph. 45 kph max speed (that's usain bolt's max speed)

Edit to previous post - it's very hard to do after trying to do so but it's definitely possible, also it's kph not mph and the speed recording is so broken

UsainBolt% - a max speed of 28 mph is required