Mini sprint

Although often used liberally to describe several different types of motorcycle-powered open-wheel racing cars, the term mini sprint actually applies to cars that have an upright-style chassis (the driver sits upright in the seat as in a sprint or midget), a center-mounted 4-cylinder motorcycle engine with a displacement between 750 and 1200cc, and dimensions and appearance that are similar to today's midget.

Mini-sprints are exclusively front-engined cars that have their engines located near the middle of the chassis.

(this is opposed to modified midgets or super-lites that have their engine located radically offset to the left).

Mini-sprints use a solid, live rear axle that is positioned in the chassis by a Jacobs Ladder or panhard bar.

Unlike the midget or the sprint car, the final drive on a mini-sprint is a roller chain.

Mini sprints carry their fuel in the rear of the car in tanks that vary from 5 to 19 US gallons.