Great visuals! For a game jam game, I was really impressed by the animation quality, environments and visual effects. Great stuff.
I also enjoyed the use of voiceover. It was timed well to the player's progression through the cars and helped make the experience feel more significant.
The best piece of feedback I can give you is that the core mechanics of the game were a little dull, given that you're just moving from car to car and holding the space bar with no way to get hurt or fail (at least, not that I could tell). I would've enjoyed it more if there was some element of danger -- a timer ticking down, or if fire damaged you, or something like that.