I would say you have a great chance! My advice would be to fine tune the controls a bit, work hard on making more levels, and perfect the visuals. The main part I would suggest working on is just more content though. If you did eventually add in some sort of user level creation that would help a lot as well. But I understand that takes a lot more time and so it should be the last priority. And as for your question, what you have currently is miles ahead of any other parking game on steam. Keep up the great work!