Loved it! I'm all for spinning the roulette and trying to go as far as possible in the oncoming traffic, and the chaotic explosive pileups that quickly ensue. Having the Jambulance be an absolute tank is also very fun to play with.
It felt like however there was little incentive to switch lanes. It feels like there should be an optimal way to play, by weaving between the three areas whenever it works best, but I can never get it to work - often I'm stuck in one lane for a long time (which is bad when I'm stuck in the forest lane). There could be F-Zero style WARNING arrows showing a major blockage on the middle lane, or a construction zone on the right lane, to force you off. Or alternatively, some kind of rare event that lets you gain a lot of speed if you can somehow make it there in time to catch it.