Ford has revealed a new geofencing system for its Transit Custom plug-in hybrid which will allow the van to automatically switch into electric mode in low-emission zones.

The technology also allows users to set their own ’green zones’ for the car to help with low-emissions driving in areas such as schools or warehouses.

Once the van leaves the predetermined area, it will then automatically select the best driving mode for the onward part of the trip.

Mark Harvey, Ford’s European commercial vehicle mobility director, said: "Improving the quality of air - and quality of life - is a goal that we all have a responsibility to drive towards.

"The Transit Custom Plug-In Hybrid and its new geofencing feature helps our customers to make a real contribution to that goal without compromising on efficiency or productivity."

The Transit PHEV is capable of travelling up to 35 miles on electric power alone, combining with a petrol engine to provide 343 miles of combined range.