The HT Speed represents a collaboration between Italian design company Pininfarina and GreenGT, a Swiss company developing hydrogen fuel cell drive systems with high levels of performance.

Caption by / Photo by Wayne Cunningham/Roadshow

As a fuel cell-powered car, the HT Speed uses electric drive motors that get electricity from a fuel cell fed from a hydrogen tank.

Caption by / Photo by Wayne Cunningham/Roadshow

Long and low, the H2 Speed resembles a Le Mans racing car.

Caption by / Photo by Wayne Cunningham/Roadshow

With 6.1 kilograms (13.4 pounds) of hydrogen stored onboard, the H2 Speed comes to a total weight of 3,130 pounds. Refueling the hydrogen tanks takes 3 minutes, according to Pininfarina.

Caption by / Photo by Wayne Cunningham/Roadshow

With two electric motors driving the wheels, making about 500 horsepower, the H2 Speed does away with a standard driveshaft or transmission.

Caption by / Photo by Wayne Cunningham/Roadshow

The fuel cell process combines hydrogen and oxygen, generating electricity and releasing water as the waste product.

Caption by / Photo by Wayne Cunningham/Roadshow

The carbon fiber structure of the H2 Speed mimics that of racing cars, and Pininfarina describes it as "halfway between a racing prototype and a production supercar".

Caption by / Photo by Wayne Cunningham/Roadshow

Water emitted from hydrogen fuel cell cars typically emerges in small quantities in vaporous form.

Caption by / Photo by Wayne Cunningham/Roadshow

Beyond the hydrogen fuel cell system, the H2 Speed underwent aerodynamic development to help its performance.

Caption by / Photo by Wayne Cunningham/Roadshow

Pininfarina claims the car has already undergone track testing.

Caption by / Photo by Wayne Cunningham/Roadshow

Air sucked in through the intakes feeds the fuel cell stack.

Caption by / Photo by Wayne Cunningham/Roadshow

An onboard compressor, part of the fuel cell system, makes the only noticeable sound from the drive system.

Caption by / Photo by Wayne Cunningham/Roadshow

With its fuel cell drive system, the H2 Speed makes it to 62 mph in 3.5 seconds and hits a top speed of 186 mph.

Caption by / Photo by Wayne Cunningham/Roadshow
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