LPG conversion specialist Nicholson McLaren Engines has just converted its 1,000th Citroën Berlingo van.

These vehicles are exempt from the London congestion charge and are proving a popular buy for city-based fleets.

The milestone vehicle was bought by Woolwich-based building contractor Maulyte.

Savings of £1,696 are possible on the congestion charge alone, plus there are fuel savings too.

Typically, the cost of conversion (£2,000 ex-VAT) is saved in the first year of operation. The vans are powered by a 1.4i petrol engine offering 75bhp.