I think this has a good core, but the tutorial could use some work. The tutorial does a good job of explaining the basic controls, though stopping everything to show the instructions really breaks the flow of an otherwise fast paced game. My biggest issue was the attack mode. I'd enter attack/hyperdrift mode, and do donuts to deal with the swarm of enemies following me. I watched the bar that shows your charging progress to see when it would end. Before that bar went down to 0, somewhere around the halfway point, the screen would shake, the car would stop drifting, and it would go straight for a short distance before stopping. It still had a glow around it, the meter continued decreasing, and once I could move again I was able to still attack enemies. It would be nice if there was an explanation as to what this is. My guess is some kind of overheating mechanic from hyperdrifting to long in a row, but it would be nice to have more details.
My final strategy was to just hold shift always, and charge the meter by doing fishtailing mini-drifts as I moved. It let me move fast enough to stay ahead of the pursuing swarm, while quickly charging the meter. After getting the fire trail upgrade it was even better. Once the meter was charged, I'd activate hyperdrift and do donuts to deal with the swarm that had been following me. Initially I would just do it until all enemies were gone, but with the screen shake stop I switched to doing it for about a third of the meter then going straight a bit, before doing more short bursts.
The upgrades also stop everything, which can be disruptive, depending on what you are doing. It might be nice to close the popup, and then have a short delay, possibly with some "Ready, Go" or a short 1-3 second countdown, before resuming play.
It would be nice if the camera was a bit closer to the car so I could see more of what is ahead. It is good to see the trail of enemies behind, but when enemies spawn in front it would be preferable to be able to see them and have a bit more time to pick a clear path. I know this is meant to be fast paced, but the distance feels a bit too short.
It would be nice if there was a play again option on the game over menu, as there is no point returning to the menu if I don't have enough to buy anything.