Lovely black and white aesthetic, and one of the most polished and complete games from this jam I've played so far. Wonderful job!
I enjoyed the concept and think it has a lot of potential for a larger game. In addition to that, the music fits perfectly. I like the little particle and text effects, and the fact that you can drive off-road, skip sections, and still recover! (It's just slower than normal, of course). The ghost high score board is a great touch.
I did find it hard to control the car. It has very little traction. The way to possess another car wasn't clear to me at first, and it can be frustratingly hard to aim correctly at a moving target while moving yourself. It's also unclear to me how much of an effect drifting has, and since the boost takes a long while to activate before it can actually possess cars, perhaps it would help if the boost started right when you released the button. Its duration could vary based on how long you drifted, kind of like Mario Kart.
I wonder if it would be more satisfying if you could simply run into the cars without needing to boost. Maybe slamming into them while boosting would net you extra fuel.
I found the concept's link to the theme rather vague, but I'm not bothered by that; this game really delivers in terms of overall quality.
Finally, it'd be cool to see your progress on the high score board relative to other ghosts. Perhaps the list gets more competitive as you gain experience. Am I near the top of the bottom? How many points before I defeat the big cheese ghost at the top of the list? Ha ha!
Anyway, you have a winning nugget of gold with this gameplay. Good luck and keep up the good work!