The car seated four passengers in a plastic shell and was powered by a two rotor Wankel engine which propelled it to 130 km/h (81 mph).

The hydrogen was stored in a cooled metal hydride tank and 3.32 kilograms (7.3 lb) provided a range of 190 km (120 mi).

[3] The car was powered by a two rotor Wankel engine that produced 100 hp (75 kW) mounted in the rear.

[4] 37 Nm3 (3.32 kg (7.3 lb)) of hydrogen was stored in a metal hydride tank that was refuelled by a single nozzle alongside water for cooling.

[2] The car was superseded by the more conventional HR-X 2 a year later, the next in line of a number of Wankel-powered hydrogen-fuelled vehicles developed by Mazda.