The 2.3-litre 125hp vans are specified from the factory with the L3 long wheelbase in order to meet the energy provider’s specialist equipment requirements. They are then adorned with the sky blue British Gas livery.

Vauxhall-approved converter Trucksmith adapted the vans’ bodywork to include a low-floor polycarbonate Luton body with a single three-dimensional air management system above the cabin designed to improve aerodynamics and fuel consumption.

The bodystyle, called Kneehi, also features a high-grip rubber coating to make accessing the load area easier and safer for engineers.

British Gas fleet boss Colin Marriott said: “We chose the Movano because it’s one of the most fuel-efficient and reliable light commercial vehicles around. The environment in which they operate is not only specialised but demanding too.”

He said British Gas opted for the L3 version to provide sufficient loadspace and payload as well as low access.

Operating on a five-year lease, the Movanos will be used to service British Gas’ expanding loft and cavity wall insulation business.