Even though we couldn’t find any official explanation as to why this white A80 Toyota Supra flew off this embankment, we suspect the driver might have missed that left turn just before the crash.
From what we can tell, that steering wheel was clearly yanked brutally to the left all of a sudden, so if the driver indeed needed to make the turn but failed to do so in time, well, case solved Dr. Watson.
Of course in the end, we’re just speculating. What we can tell you for certainty is that the car flew for about four meters (13 ft) down an embankment, according to the description of the clip, and that the driver came out OK.
The description also calls the driver a “young lad”, which might also indicate inexperience or a willingness to take risks, although again, your guess is as good as ours as to why anybody would perform such a maneuver at that speed.
In a way, the Supra driver should probably consider himself lucky, despite the crash. There could have been anything at the bottom of that embankment, and the fact that he simply landed in an open field meant nether himself, nor anyone else was hurt.