by many the most hardy series model constructed. It is quite possibly also the type of classic Land Rover that features strongly in the general public's perception of the Land Rover, from its many appearances in popular films and television documentaries set in Africa throughout the 1960s, such as Born Free. In February 1968, just a few months after the Rover Company had been subsumed, under government pressure, into the Leyland Motor Corporation, the Land Rover celebrated its twentieth birthday, with total production to date just short of 600,000, of which more than 70% had been exported. Certainly it was whilst the series IIA was in production that sales of utility Land Rovers reached their peak, in 1969–70, when sales of over 60,000 Land Rovers a year were recorded. (For comparison, the sales of the Defender have been around the 25,000 level since the 1990s.) As well as record sales, the Land Rover dominated many world markets- in Australia in the 1960s Land Rover held 90% of the 4×4 market. This figure was repeated in many countries in Africa and the Middle East. A rail-road version was developed in partnership with Dunlop. Series IIA forward control The series IIA FC launched in 1962 was based on the series IIA 2.25-litre petrol engine and chassis, with the cab positioned over the engine to give more load space. Export vehicles were the first Land-Rovers to get the 2.6-litre petrol engine. Most examples had an ENV (heavy duty) rear axle, a matching front axle came later. Tyres were large 900×16 types on deep-dish wheel rims to spread the ground weight of this heavy vehicle. These vehicles were somewhat underpowered for the increased load capacity (), and most had a hard working life. Less than 2,500 were made, and most had a utility body, but surviving examples often have custom bodywork. With an upgraded powertrain, they can be used as a small motorhome. The vehicle was not the first COE (cab over engine) vehicle produced by the plant, since they had also produced the Leyland 15/20 which was based on the Standard Atlas. Series IIB forward control The series IIB FC produced from 1966 was similar to the series IIA FC but added the 2.25-litre diesel engine as an option. The 2.25-litre engine was the standard engine for this model, the 2.6-litre engine being only available for export. Heavy duty wide-track axles (designed by