The FCEV is based on Hyundai’s new FUV (future utility vehicle) platform and represents a step up in technical sophistication from the previous ix35, as well as a clean-sheet design, both inside and out. Fuel cell system efficiency has been improved and now stands at 60%, which Hyundai claims is the best ever achieved for a fuel cell vehicle. Fuel cells don’t burn hydrogen but split the molecules to produce electricity with only water and heat as by-products. The system incorporates a small lithium ion buffer battery to provide the fast response needed for acceleration.
Hydrogen capacity has been upped from 144 to 156 litres and the compressed gas is now stored at 700 bar in three tanks rather than two, one behind the right-hand rear wheel and the other two beneath the floor. The distribution and size of the tanks frees up space inside the car and there’s a generous flat-floor load space. The range has increased from 369 miles to 497 miles on the NEDC cycle and this is partly due to the increased efficiency of the fuel cell system as well as the extra fuel. Fuel consumption (of hydrogen) is 72mpg and the Nexo can be started in temperatures as low as -30deg C.
Instruments are displayed on a 7in screen with a central 12.3in screen for navigation and system information including fuel cell and storage information. The floating centre console is based on an array of conventional buttons rather than following the largely screen-based ‘glass cockpit’ philosophy. Buttons are of different sizes and shapes, which should make them easy enough to locate by touch when on the move.