Great concept, love the potential here. The risk/reward with the way you manage parking spaces is a nice mechanic, and I love the random defects. As for criticisms, everything Tonyl said is pretty spot on.
Maybe a handbrake would be a fun addition because the low traction car is the most fun by far - I think going forward, really think about what challenge each particular car brings and potential fun and unique moves/situations you could picture them in.
A great submission, congrats on completing it!