 Buses were constructed at a specially built factory at the Lillyhall Industrial Estate, Workington.Styling was carried out by the Italian vehicle stylist Giovanni Michelotti, previously commissioned by both Triumph (Herald, TR4, GT6, 2000/2500, 1300, Dolomite and Stag) and Scammell lorries (Routeman GRP cab).It was intended to replace all the rear-engined single-decker buses offered by British Leyland, including the AEC Swift, Bristol RE, single-deck Daimler Fleetline, Daimler Roadliner and Leyland Panther.