Nice idea, I liked the design and art a lot. and that you could design your car.
Had a bit of trouble designing the car, when I dragged the item I wanted it added my previous dragged item instead,
First time I tried it I didn't see the buttons on the right and managed to press start race without any parts, and then I got a car that couldn't move and was stuck in the race, until I pressed space and was thrown of the track in some red sky with a high sound in the speakers