What I liked: Fun concept, the basic idea of a racing game roguelike and your choice of flavour for it is a cool and daring combination. The art is fantastic, massive kudos to your collaborator. You've put a lot of thought into the mechanics and how to keep things moving and interesting for the player. There's a lot of variety in the kind of units and obstacles on the map.
What I did not like: The controls. The way momentum works and the hard corners and cluttered nature of levels makes for a very frustrating combination. Neither playing nor the learning curve are fun for me, though I imagine people with more experience playing racing games might take to it a bit better. Boomer enemies are very difficult to avoid. In general, it's very hard to get anywhere without crashing. Another more minor criticism is that I had trouble visually parsing the map, specifically what tiles block movement/make you crash and which you can path through. The map looks quite busy and I think more consistent visual colour coding would help legibility.
Still, very cool concept. I would be very interested in playing a version of this that's more of a precision racer (a Snake game-like, if you will), where there's acceleration and braking but turning response is instant.