[sybir]

My thoughts. The non-driven wheels are going to find their speed (stopped) on the ramp almost immediately, because with no forward inertia, they can be stopped easily; you're only slowing the rotational wight of those two wheels, not the whole car. At that point, you're basically going up the ramps at ~10 mph.

Now, with the engine engaged, as soon as you get the rear wheels hitting the ramp, they're trying to spin 75mph on a non-moving surface. You can see what happens if you spin up and RC car then drop the rear wheels on the ground....it'll stop almost immediately if you stop giving it gas. As long as you don't stay in the throttle, and declutch in a MT car as soon as the rear wheels hit, spin down after making it ontot he ramp, you'd be ok. Basically, even though the wheels are spinning, you can slow them really quickly without upsetting the car becuase the inertia of the car is effectively <10mph at that point, going up a hill.

If you watch the old Knight Rider shows, you'll see a little puff when the front wheels pop up on the ramp and spin down, and you'll see the rear wheels spin for aobut 5 revolutions as the guy lets it spin down (remember, automatic) and lets momentum ease the car up the ramp; then, it's just a little bit of gas to make it climb the ramp.

Picture riding a bike, and locking up the rear brake. Pretty easy to lock it up, and it regains whatever rolling veleocity as soon as you let off the brakes..same idea here. Becuase you're not fighting the weight of the car, it's not like going 75mph to 0, it's jsut some clever shifting to keep up with the rapid wheelspeed reduction. You're still doing 65mph when you're on the ramps, so the laws of physics are upheld.