A long time ago I stayed in a farmhouse that had a private road to it. The road turned left and dipped down sharply into a little valley and then up the other side to the house.Just before the end of the downhill bit there was a sharp left kink.
I used gather as much speed in my Mini Pick-up as possible and put it in neutral at the top of the hill then see how far I could coast down the hill, round the kink and up the other side. This depended on having the nerve to leave the brakes alone on the steep dip and the bend. I got faster and further each time which involved a higher entry speed and subsequently higher corner speed at the kink. Eventually,I was only a few yards shy of cresting the rise to the house.
The record effort took place on a dark, windy night. I carried even more speed than normal, plunged down the drop and steadfastly kept off the brakes into the kink. Here, the 6x10s ran out of grip (or I ran out of talent)and the Mini flew off into the ditch, flipping onto its side.
What was the question again?