Not every car can become a taxi
Taxis are often middle-class vehicles, usually having air-conditioning, leather seats and other amenities. Most often evokes car brand associated with the taxi is a Mercedes, because it is regarded as the most reliable car manufacturer.
A taxi must be comfortable - so middle class or high. I can not imagine that a taxi could be a car hatchback or van. The air conditioning is absolutely essential, especially on hot days, which is recently more and more. As for the leather seats they are easy to clean and disinfect, and the cleanliness of the taxi is as important as comfort.
In short about hybrid taxicab in Wikipedia
Hybrid taxi or hybrid electric taxi is a taxicab service provided with a hybrid electric car (HEV), which combines a conventional internal combustion engine propulsion system with an electric propulsion system.
In 2000, North America's first hybrid taxi was put into service in Vancouver, British Columbia, operating a 2001 Toyota Prius which traveled over 332,000 kilometres (206,000 mi) before being retired. Several major cities in the world are adding hybrid taxis to their taxicab fleets, led by San Francisco where hybrid represent almost 50% of its taxicab fleet by March 2010, and New York City where hybrids taxis represent 45% of the city's total fleet by September 2012. Unlike conventional gasoline cars, hybrids get better fuel economy, do well at slow speeds or idling, and have cleaner emissions.
Using taxi services
Taxis are very useful if you live in the city. How many times a month you happen to use the services of taxi transport? I suspect that at least several times a month, and many people use these services couple times a week.
It is worth considering why choose a Taxi- yet we have buses and metro. What makes the taxi is more convenient and better in some situations? I think it is a matter of getting on to it when and where you want and that you get exactly to the indicated address. This is luxury that you won't get in public transport.