Played with the hurrcan
e3 demo wouldn't allow for a change in handling unfortunately, so it was automatic with assists on (I found no way to turn them off in the e3 build)
The impulse triggers seemed to add another dimension when going off-road, which was nice. The real challenge came when it started raining, however. The entire handling mechanic became MUCH more slippery.
The rain affects all surface types in the game. Tarmac, sand, mud, gravel. They tell me they are only focusing on rain, for now, as they are modeling the specifics of the environment they've set the game in very closely. They are looking into atmospherics, though there are already some elements of the weather change which will immediately affect visibility (ie, cockpit view).
Also, barn finds are making a return.