I don't know how much fuel was involved tbh - I do know a fuel burn is deeply impressive, having seen a relatively few mills go up a couple of times (US woman starting a BBQ with it was particularly worrying for the Brits gathered around it, and we'll not discuss the time I personally did something deeply foolish

) - there's part of me wonders that if the whole of the 160kgs of fuel load had gone up, anything could have been done?
My point re the angle of impact is that at 130-140 mph, wheels locked, a car cannot change direction, it can only rotate around its own axis. It should have speared off that barrier such that we were only briefly mentioning Grosjean having another avoidable accident this morning.