i dont know about the hight, but i know that he did'nt do any record like they sayed.
real record in lenght is 187feets, done in rally finland(finnish rally, world rally car series(FIA series)at 2003, Done by Markko Märtin and car was Ford WRC(2003 model) before this record was 178 feets.
Record was made in ouninpohja specialstage.
I suspect that Most Americans don't know what WRC series is, i believe Ken Knows, but he's only dreaming about driving in that series. This is World championship series of rally.
Record jump was made during rally, on high natural jump, not with artificial ramp. With artificial ramp you can get much longer with real rallycar, not with toy like subaru WRX(N-series rallycar)