I did that a couple of years ago...in a diesel Passat estate
It's mad to think that the bikes lap that course at an average speed that is higher than the maximum speed I managed to get the Passat to.
The bikes are staggering given the condition of the roads, I also think getting you head around Mark Higgins' lap this year is pretty incredible as he averaged 117.5mph and had not co-driver, I know the roads are closed but it is bonkers
I hit over a few times on the mountain section but conscious of the drop if you get it wrong