This Land Rover was designed as an all terrain military vehicle with a payload of 30cwt. Land Rover constructed this prototype, with a forward control cab to achieve a large load space, on a purpose built chassis with a wheelbase of 112".

With a 6 litre, six cylinder Perkins diesel engine, it could manage 40mph on-road, an average of 15mph off-road and could climb a 1 in 2 incline. The military did not order the vehicle, so the 112" prototype remained unique.

When it returned, it was converted to a recovery vehicle. Painted yellow, it became affectionately known as 'Buttercup' and after service at Solihull, was transferred to the Gaydon test track where it spent two decades as rescue vehicle.

In 2007 'Buttercup' had a complete restoration, including repainting the original Rover Company livery. The final touches were completed at the Museum in 2009.