The technology in this car will replace majority of the internal combustion engine ( regular car) cars in future. The Mirai is a Fuel Cell powered car. It has two tanks of Hydrogen which mixes with Oxygen releasing Electricity and Water. The Electricity is used to run the electric engine. The exhaust from this car is pure water. Toyota created a 2 litre small bin that holds the exhaust water. The bin automatically empties the filled water. Because there is no gasoline engine in this car, there are no oil changes. Which saves time and money spent on maintenance.
Currently this car is available in California with plans to expand in the East Coast region of USA after the availability of the Hydrogen gas stations.