Kinewright has a second engine: Wheels, how a body with exactly four wheels moves. Three stages are accepted, and this article shows what each one proved and every limitation still in place. What Wheels is Kinematics only: no tyres, no suspension, no physics. Every number here is traced from the engine's own run; nothing is measured. A shell with four wheels that pulls away, holds and changes speed, turns, brakes, stops, parks and manoeuvres in a b...