The new concept is loosely based on the FCV-R concept, also a medium four-door sedan that first appeared at the Tokyo show in 2011.
The FCV is 35mm longer, 20mm wider and 25mm higher than the FCV-R, measuring 4,870mm long, 1,810mm wide and 1,535mm high while the wheelbase has grown 80m to 2,780mm.
The lightweight fuel-cell stack consists of two 70MPa high-pressure hydrogen tanks and has a 3kW/l power output density with a maximum power rating of at least 100kW. It is also fitted with a high-energy boost converter.
Toyota claims the system has a range of at least 500km and can be refuelled in as little as three minutes.
The FCV concept is also set to appear at the Consumer Electronics Show in Las Vegas early next year, with Toyota US’s Vice President Bob Carter expected to make an announcement about future production at the event.
A broad estimate on price for a production model earlier this year put it between US $50,000 and $100,000 (AU $55,000 to $110,000).
Stay tuned to TMR for more news from the 2013 Tokyo Motor Show.