There are millions of Internal Combustion Engine (ICE) cars and trucks in the world and it will take decades to replace these cars and trucks with more environmentally friendly vehicles.
The effort will also take a great toll of the environment, as there is a great deal of raw materials used, energy consumed and pollution created when producing a hybrid vehicle. It is also costly to the environment to scrap the vehicle it replaces.
The environmental effect in towns and cities would be extremely positive if we could and would convert a great number of the current ICE vehicles to hybrid operation.
For example if could convert my old Land Rover Defender so it can run normally on diesel but add the possibility to switch to batteries in town, when driving at low speed and when queuing.
This would reduce my overall diesel consumption and drastically reduce pollution in populated areas. It would also extend the lifespan of my vehicle and reduce the need for a new purchase.
There are several companies today producing and gradually refining interesting products that can help this transformation from ICE vehicle to a hybrid vehicle. Se examples below.
An example addon electric motor and gear from XL Hybrids
Bolt-on example above and and below a cheap DIY Bolt-on solution from the great ecomodder website.
And an HEV can be converted to:
The engine conversions listed above must meet the local emissions and safety standards.
For example, in the U.S. this includes emissions and safety standards instituted by the U.S. Environmental Protection Agency, the National Highway Traffic Safety Administration, and state agencies like the California Air Resources Board.