Much like Chip said, any time he properly prodded the throttle you can see it trying to steer off the circuit
It was also on semi slicks or something on the front and proper wets on the back after his original rears got chewed by a random bit of wheel arch. To say the handling was a handful was an understatement. Think he did well to stay on track full stop
He's done loads to it since, this vid was this time last year. Should be much better now, so it would be great to see the comparison I reckon
