This series-parallel hybrid (SPHEV) prototype offers the special joy of freely switching between two distinct performance characteristics: "Serene" and "Spirited." The electric motor and internal combustion engine are integrated using an efficient packaging design that makes a mix of riding modes possible. The bike can be calm and quiet when on city streets and then deliver powerful, dependable performance in the countryside. Furthermore, proprietary power and energy management technology improves fuel efficiency by over 35%* compared to vehicles in the same class. The PROTO HEV combines being Fun to Ride with excellent environmental performance.
*In WMTC2-2 Mode (in-house figure).