I liked the concept! Kudos on execution!
Took some time to get used to the driving mechanics. My muscle memory of playing racing games kicked in, I instinctively kept accelerating which made handling of the car very difficult. But after couple of failures I learned my lesson to use the accelerate 'W' button sparingly if you want to go far in the game.
A checkpoint system would have been nice, it was little infuriating to start from the beginning after every failure.
I couldn't go past 2nd 'you don't have to stop' section, so not sure if you've already done it. But the ability to Honk to interact with levels (ex. sound responsive doors/bridges) would add to the challenge.
Good choice of background music, kept me from smashing my keyboard. :P
Great job guys!