Three Wheelers are largely used as commercial vehicles, used to carry passengers and goods. They have bi-fuel engine, working either on CNG or LPG and petrol for limphome. They have TMC brake system and anti-dive front suspension. They are provided with remote location gas filling and oil pumps drive extracted from clutch shaft. It is safe on road and low on maintenance and highly economical. They are also cleaner for the environment and convenient. There is an efficient battery charging also provided along with safety measures in case of brake failure. They have got good after sales service. Because of the bifuel mode, one can run the vehicle in a number of ways, thereby making maintenance convenient. Bajaj three wheelers, Piaggio van are some of the brands who make vehicles in this category.