I was actually considering getting some 18 inch rims (cheapest possible that would fit) and getting some drag radials put on. Firstly, the way the car is geared, its just hitting 4th gear through the finish line. Not good for 1/4 mile racing. Secondly, depending on the radius of the tire, the smaller diameter rim would help with the gearing and make the car a bit faster although I do have some doubts about that so... I'm just wondering what 18 inch rims and drag radials would fit on this thing! Haha.