A new generation of plug-in hybrid taxis are set to hit the streets of London.
The Frazer-Nash Range Extended Electric Metrocab comes with fuel economy of more than 75mpg and emits less than 50g/km of CO2.
What's more, the new model is expected to cost no more than that a current Hackney carriage model.
Frazer-Nash says that switching to a hybrid vehicle could save cabbies between £30 and £40 a day in running costs as well as extending the time between refuelling.
The cab is powered by an electric motor linked to a large battery, but also comes with a 1.0-litre petrol engine that is hooked up to a generator to replenish used electricity and extend the Metrocab's overall range.
Currently undergoing real world trials, the hybrid taxi can be charged at home using a standard three-pin plug to make the most of the available electric-only range.
The Metrocab has received the Euro 5 emission standards mark, falling just short of the upcoming Euro 6.
The new cab meets all of Transport for London's standard requirements for taxis, including the 7.62-metre turning circle.
"The all-new Range Extended Electric Metrocab has been in development since the mid-2000s with several prototypes built and over a million kilometres of engineering tests completed," Sir Charles Masefield, Chairman of Metrocab, said.
"Instantly recognisable as an iconic London Hackney Cab, with a panoramic glass roof for views of the city, our new all-British London cab offers, for no price premium, completely new levels of economy, emissions and passenger comfort and is ready to enter service this year, benefiting the passenger, driver, city and environment alike."
Copyright Press Association 2014