I really like the very creative concept without a doubt a great job

It kind of feels more like a demo than a game, but I like the concept.   The toy car launches more than expected like you said, but I think it fits the goofy nature of the game.  I think some options to upgrade the car or something could make this a pretty fun time.

It's short, it's fun, it's Dice Race, I like the concept of racing on randomness, although right now it feels a bit barebones with only having one control, I can see potential for it to be a kind of party game!

As mentioned before, the main missing thing is the player interaction. Besides that, this seems like nice concept with pontial. Maybe add some simple player controls in addtion and you’ll have an enjoyable prototype.

Kinda like golf, but for cars

I can definitely see the potential in this. However, I think y'all already know the issue with this being that there's basically no player interactivity other than pressing space.  I think this game could be interesting if there was more terrain to interact with and more control over where the car goes (perhaps choosing the direction?).  The racing direction is probably not the way you want to go though since this is singleplayer.

Also, minor nitpick, but it took a hot second to realize the controls: might be better to put that up front on the menu screen.