You'll need to print:
The wheels then clip on the four sides of the chassis and allow the car to roll.
And if you're curious to know why this model is so special:
edit 01/29/2023 → 2 new folders now contain smaller version of the front and back wheels. If the normal wheels rub on the arches, or if you want to print a scaled down version of the model, you can use either of the wheel files in those folders. (Scaled down wheel 97% and Scaled down wheel 95%)
edit April 2023 → New file “R5 Turbo chassis (air intakes mod)” with more accurate intakes on the rear arches:
The author marked this model as their own original creation.