I've played a bit more and the game's characters are very unbalanced. I've had 10 wins so far (in multiplayer) and all 10 with Bluefang, his car's breaker is super op. I managed to get close to winning with a few other characters, but if I pick someone like Sgt. Rescue I struggle to even reach top 5. Some hero cars and their abilities suck hard, I don't think it's just a case of mastering them, because there doesn't seem to be anything to master.
I also always find it confusing to remember if I'm the blue or orange team. The game should do a better job at reminding you of that in the heat of battle.