The left side (black) is a 1.5 liter Internal Combustion Engine which both drives the wheels and the electric generator. The right side (silver) is the high voltage unit as part of the Toyota Hybrid Synergy Drive.
Hybrid Synergy Drive on a 2004 Toyota Prius. The left side (black) is a 1.5 liter Internal Combusion Engine which both drives the wheels and the electric generator. The right side (silver) is the high voltage unit as part of the Toyota Hybrid Synergy Dr