Saw that live on TV. It wad done at the X Games this year. The loop was 40 feet and the speed the cars were going was 42 or 43 mph. The video didn't really show Tanner's landing. A few feet shorter and he would have hung the rear wheels on the edge of the landing ramp.
Probably not too many of you guys watch the X Games. You should. They do a motor cycle high jump. The old record 37 feet. This year 47 feet! The tricks they do cycles are simply amazing.
My favorite event is the Moto X. The obsticles are insane. The funniest event is the womens Moto X. This year they changed the course for them to make it easier. Didn't really help.