it sure is slick. the user interface, the graphics, the sound design are all very very appealing (and seem appropriate to the era you were going after, at least to me!)
but... i do think the tutorial could've afforded to be a little more fleshed out. i also think that the pixelation effect, while it serves the game artistically, can make it difficult to see ahead and plan out what to do. granted i'm a little colourblind but i've crashed into a few cars thinking it was one of the trick orbs. the same all applies to the turns in the roads.
i think it came together very well though. good luck in the rankings! :)