I commend you for implementing such a well working auto-save function. I had been playing for about 2 hours without saving when my computer decided to freeze up all of a sudden. Turns out I only lost 5 minutes of playtime. I thought the game was great already; now I'm convinced it deserves nothing less than 5 stars.
Amazing how such simple things can be so effective, haha.
Oh wow... The loops and back-jumping half-loops reminded me of motocross maniacs... Crazy old gameboy game, very fun to see that kind of thing reappear!
I encountered some kind of freezing glitch though, the car would refuse to move at all and the laser-shots would get stuck in mid-air around the car and stay there. Other than that, pretty solid and interesting little game. Keep up the good work! :D