some silly design choices
Bugs kill it, level 9 is a bitch, you need to have the car hit the wall at just the right angle, its stupid.
the really long restart sucks, instant would be much better. the inability to deselect a part needs to be addressed. the work area needs to be looked at again, the number of levels where you really need to move the part right to the edge of the construction area is rediculous
all in all, good potential but needs to be looked at again to be great