I personally think that coming to a jump much faster than usual and letting the chassis drag the top of the lip by NOT tapping throttle and letting the momentum carry the car keeps it much lower. I have also noticed that different brand cars react slightly different to this technique.
Its this simple. Bikes have 2 wheels and buggies have 4. The whole scrub whip thing IMO isnt going to work well for a car.... I personally think that landing the car at a slight angle, either front to rear, left to right or a little of BOTH actually settles the car nicely, allowing one wheel to absorb the shock at a time.
Pitching the car when landing into a turn is a whole different conversation. I think a lot of folks here are trying to associate motocross with rc and thats ok, but not with techniques like these. IMO!