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HydroGen3 was an Opelhydrogen fuel cellconcept vehicle used for testing in 2006. HydroGen3's 400-kilometer (250 mi) driving range is the highest of any fuel cell vehicle approved for public roads in Japan. The five seater front-wheel driven prototype is based on the Opel Zafiracompact MPV.
Fuel cell unit: 200 individual fuel cells wired in series, voltage 125-200 V, dimensions: 472×251×496 mm, active area: 800 cm, pressure: 1.5-2.7 bars, output: 94 kW, power density: 1.6 kW/L or 0.94 kW/kg.
electric traction system: Three-phase asynchronous electric motor with integrated power electronics and planetary gear, operating voltage: 250-380 V, output: 60 kW, torque: 215 Nm, max. engine rpm: 12000, gear ratio: 8.67:1, gross weight: 92 kg (203 lb), dimensions: 4317×1742×1684 mm, vehicle curb weight: 1590 kg (target value), performance: acceleration 0–100 km/h: 16 s, top speed: 160 km/h (99 mph), operating range: 400 km.