First off I just want to say this game is great! It's really fun to drive down each of the courses and the cartoony style of the game is awesome. I get that the game is brand new and there isn't much time for very many updates, but I have some suggestions that will make the game even better than it already is!
1. More Maps (Ability to specifically choose)
Right now, there are only 3 maps and 2 of them are very similar. You have to play them in order with no ability to choose a map. Once 3 levels are conpleted, it loops back to the 1st map and that goes over and over again. I think that you should be able to choose your map from the main menu, and I don't think there are enough options right now. So maybe add more maps and let us choose which ones we want to play? That would make the game a lot better.
2. Multiplayer (Ability to party)
I'm not going to lie, the ability to play with friends in this game would be the BEST! There aren't a lot of mobile games out there that are fun and can actually stay fun while playing with friends, and I just think that racing down the tracks against your friends would be awesome! There could be a party button in the main menu where you can send an invite or search them up and play with them.
3. Bots
The fact that there are bots in the game that are actually pretty well done, especially this early in game development is amazing. I just have a few suggestions with bots that might make them a little better. There should just be an option to turn off bots if you just want to play solo, and adding to my multiplayer suggestion, there could be an option where you can toggle bots while playing with friends. There should also be difficulties for bots, like "Easy", "Medium", "Hard", etc. Right now the bots would best fit Easy difficulty because they are kind of clumsy and go significantly slower than the player.
4. Pause Menu/Settings
This is kind of something you need in a game. Players should just be able to pause when they need to, and it should stop the game when done if playing with bots or playing solo. The pause menu should include a Resume, Settings, and Main Menu button. Right now the only setting really available is the vibration setting. This should be moved into the settings section of the pause menu, with other options like "Invert Controls" which makes swiping left turn right, and vise versa. There should also be something in settings where you can adjust volume and SFX. (More detail below).
5. Volume
Right now, there is absolutely no volume in the game, which just makes it seem boring and bland to be honest. There could be crashing noises when cars crash, skidding, drifting, and accelerating, etc. This would just make the game feel more alive and make the experience more enjoyable. There could also be a little song playing in the background that can be adjusted with the "Volume" section that I suggested in settings.
6. QoL features/Extra
Just spilling some Quality of Life features that would improve the game a little. There could be a toggleable timer in solo mode or with bots on each of the maps where it just keeps track of your time from when you started and when you finish. You could try to set new personal bests and I just think it could make it a little more fun. Another thing is car customization, which could be accessed through the main menu. All you're really stuck with is an orange car right now, and if more colors were added, that would be cool. There could also be other things, like customizable wheels or changing the liscense plate. You could also have to reach a certain level or reach a certain time tracked by the timer to unlock certain cosmetics.
Again, I get that this game is brand new, and it has a great start. I just see a ton of potential in this and wanted to share my thought on what could make the game better for future updates.