The Volvo ECC (Environmental Concept Car) was a concept car built by Volvo in 1992. It was a design exercise in using recycled material. It was powered by a hybrid electric and gas turbine engine. Much of the lines were reused in the Volvo S80.
The Volvo ECC was built on the Volvo 850 platform. In contrast to most production hybrids, which use a gasoline piston engine to provide additional acceleration and to recharge the battery storage, the Volvo ECC used a gas turbine engine to drive the generator for recharging. This type of engine has a higher thermodynamic efficiency than the conventional internal combustion engine with pistons. Also in Volvo's design, the fuel is evaporated and mixed with air before ignition. This provides a very low NOx emission. The driver can also switch between gas turbine electric and hybrid by switches on the dashboard.
The maximum power available was 95 brake horsepower, with 75 available for continuous use. It had a drag coefficient of 0.23. With the vehicle weighing approximately 300 pounds more than a conventional Volvo 850, acceleration from zero to sixty miles per hour was in the twenty second range. Top speed was 110 miles per hour (180 km/h). The vehicles range on batteries alone was 90 miles (140 km), and when combined with a full tank of fuel for the turbine, about 415 miles (668 km).
The Volvo ECC was debuted at a time when California was seeking Zero Pollution Vehicles (ZPV). With its gas turbine, the Volvo ECC was not a zero-emissions vehicle, and hence did not meet the needs of the time. With the focus now shifted away from true zero emissions vehicles, many of the concepts tested in the ECC may prove of value in future concept and production vehicles.