Vehicle, Mobility and Transportation Design Cerberus Moped by Marco Naccarella Significant advancements in engine design are desired for future vehicles. Yet, two problems persist: efficient combustion and user friendliness. This includes considerations of vibration, vehicle handling, fuel availability, mean piston speed, endurance, engine lubrication, crankshaft torque, and system simplicity and reliability. This disclosure describes an innovative 4 stroke engine that simultaneously provides reliability, efficiency, and low emissions in a single design.