Hydrogen to power automobiles can be produced from several different primary sources, which makes it a promising alternative to current sources of energy. Toyota with their Fuel Cell System (TFCS) combined patented fuel cell technology incorporating Toyota FC Stack and high-pressure hydrogen tanks with hybrid technology. This system has much higher energy efficiency compared to internal combustion engines.

Refueling time compared to EVs is much shorter and around 3 minutes. Another difference between hydrogen power and internal combustion engines are zero CO2 emissions. Ride quality is comparable to other automobiles.