MG Rover is offering small fleets running less than 25 cars one year's free fuel on most new models registered before March 31.

The offer, which also applies to retail customers, gives drivers a fuel card with cash set aside based on 10,000 miles a year and the official combined fuel consumption of the manual version of the car selected.

The offer excludes Rover 25 i and iE and Rover 45 iE models, while Rover 25 Impression S, MG ZR 105 and MG ZR turbodiesel models have a 5,000-mile a year limit.