I preordered it as soon as it was available. So I got the tech demo thing, which was nice. It felt on par with what was available in the BeamNG tech demo. Just a big arena with stuff to crash into.
The Early Access came out and it is VERY early access. There's not much too it right now. You can select 1 of 2 cars. You have the choice of doing a gravel race, a tarmac race, or a demolition derby. The races can be played solo (practice), 2 racers, 12 racers, or 24 racers. Demolition derby is 12 or 24 racers.
The destruction right now is maybe a little... over the top:
http://cloud-2.steampowered.com/ugc/469796924677475181/ECA7C5C1B24145DD8AB87047A109A42DF16F76A5/
My car still drove, even looking like that.