Great job ! The controls are distrubing at first but then it really gives some challenge and it becomes rewarding to control the car properly ! It took me some time to stop trying to rotate the car without going forward/backward. I really like the first GTA's influence in the choice of camera but maybe you could try to zoom out a little ? Nice work :)
About the webGL, did you try the game on firefox ? Because I have to switch browser to play webGL games ! I use brave as an alternative. And your building/uploading process shouldn't be counted in the jam time as stated on the jam page if you want to have more time to do your game :p
Is the menu supposed to be like this with a small play button ? 