From the beginning it was realised that some buyers would want a Land Rover's abilities without the spartan interiors. In 1949, Land Rover launched a second body option called the "Station Wagon", fitted with a body built by Tickford, a coachbuilder known for their work with Rolls-Royce and Lagonda. The bodywork was wooden-framed and had seating for seven people. Tickford was well equipped in comparison with the standard Land Rover, having leather seats, a heater, a one-piece laminated windscreen, a tin-plate spare wheel cover, some interior trim and other options. The wooden construction made them expensive to build. The Tickford was taxed as a private car, which attracted high levels of Purchase Tax unlike the original Land Rover. As a result, fewer than 700 Tickfords were sold, and all but 50 were exported. In 1952 and 1953, a larger 2.0-litre petrol engine was fitted. This engine has Siamese bores, meaning that there are no water passages for cooling between the cylinders. During 1950, the unusual semi-permanent 4WD system was replaced with a more conventional setup, with drive to the front axle being taken through a simple dog clutch. Around this time the Land Rover's legal status was also clarified. As mentioned above, the Land Rover was originally classed as a commercial vehicle, meaning it was free from purchase tax. However, this also meant it was limited to a speed of on British roads. After an appeal to the Law Lords after an owner was charged with exceeding this limit, the Land Rover was classified as a "multi-purpose vehicle" which was only to be classed as a commercial vehicle if used for commercial purposes. The 1954 model year brought major changes. The wheelbase model was replaced by an wheelbase model, and a wheelbase "pick up" version was introduced. The extra wheelbase was added behind the cab area to provide additional load space. In mid-1954 the "spread bore" petrol engine was introduced (from engines 5710xxxx), allowing better cooling between the cylinders. This had been introduced in the Rover car the year before. The engine was modified again in 1955 (from engine 1706xxxxx), sometimes known as the 'later' spread bore. September 1955 saw the introduction of the first five-door model, on the 107-inch chassis known as the "station wagon" with seating for up to ten people. The 86-inch station wagon was a three-door, seven-seater. The new station wagons were very different from the