When the car flipped i though R would reset it but, it reset the whole world. The delivery bus driving was tough. I can see you have put most efforts in level designing and its reflecting well, finding route through the city is tough, and the car controller is snapy and accelerates way too fast. Felt bad for killing most of the citizens, hope there are no charges for that in the delivery memo. Had fun! Good game buddy.
I have tried something similar, do check mine when you get time! Cheers :)