At my cousin's house, back when we were kids and running around all over, we bounced back to this a lot, just to drive to the edge of the map and boost up the vertical cliff... Lots of map to explore too, but somehow always ending up launched high in the air. Mad physics and a good time.
The cliff face/boooom is important, yes, but I feel further attention should be paid to the track editor; notably, making the smallest circle track possible, putting max CPU riders, and attempting to drive-through the clusterfuck.