Very solid game and starts to feel great when you get the hang of it.
heres some changes i would like to see ( in my opinion )
1. increased coyote time (I'm sure a bit more would go a long way considered how many short platform sequences there are)
2. i really really really hate how the end of level trigger is not the entire floor and so you can basically "beat" a whole level and then land slightly to the right of the finish checker square and still drive off a cliff. it feels unfair and a brutal way to lose in some of the harder levels
3. less single square platforms in the later levels and some more interesting windy roads
4. some of the more difficult levels are artificially even harder by the camera limited views so maybe it could zoom out a bit or do a better job of showing incoming platforms / hazards
5. better sound effects for hitting wall / better sound design in general
6. variety in visual level design / colors
7. increased visual depth of non driveable area (is it lava?)