Hey,
Thanks for your nice comment <3.
I know that the hitboxes are strange but this is fixed in the new version of the game (which I can't upload because of the jam) (btw, the Highscore Ingame is also in the new version). I also know that the font is kinda strange, I think I can't really do anything because I thing gamemaker made the font strange xd. Now the thing with the different car speeds etc: The cars get faster every 15-30 seconds, but I already planned to add different speed on every car when I add planes and more to the game. And the last thing: I don't know really what you mean with "the resolution picked in the browser wasn't the proper one?" but what I can say is that the viewport is scaled up a bit so you can see the screen better.