The Wulfrunian was introduced at the Commercial Motor Show in 1958 as a "concept" vehicle designed for one-person operation without the need for a bus conductor.

The engine, a 10.45-litre Gardner 6LX, was located beside the driver, with the front axle moved back to create space for the entrance.

The cost of developing the vehicle, combined with the lack of sales, led to enormous losses for Guy, who first went into receivership in 1961, before finally ceasing production for the UK bus market in 1969.

A further four were acquired second hand and put into service, two from County Motors of Lepton and one each from West Wales and Lancashire United.

This has been the subject of a thorough restoration (into the original red ex-tramway route livery) at the Dewsbury Bus Museum and joined the only other survivor, UCX275, back on the road in 2022.