Germany. The Elva became first mass-produced British Formula Junior car. Other early British designs included the Gemini (earlier called Moorland) and Lola Mk 2. Although these early British FJs were front-engined, the F1 car was undergoing a mid-engined revolution and there were also strands of thinking in FJ that stemmed from the 500cc Formula Three where rear-engined cars had been the norm. It was not long before Cooper started to produce a car similar to their contemporary F1/F2 thinking, later F3s and "bobtail" sports car fitted with BMC A-series engines. On the engine side, Keith Duckworth of Cosworth Engineering took an interest in Formula Junior and managed to get hold of two of the new engines to be used in the 1959 Ford Anglia. Lotus also came into the game with their Lotus 18, a simplified derivative of their Formula One and Formula Two chassis fitted with a Ford Anglia engine. Later Lotus also raced in Formula Junior with Lotus 20, Lotus 22 and Lotus 27. These two marques (Cooper and Lotus), with close links to their Grand Prix teams, soon came to dominate Formula Junior on an international level. In Sweden, Saab produced the Saab Formula Junior, mainly to test new engine designs. In Russia the most used engine came from the Moskvitch. Through the formula's lifetime, though, the number of manufacturers increased. By the end of 1960 there were over 100 manufacturers worldwide, and by the end of 1963 the number had increased to almost 500 – but the vast majority of race wins went to the British constructors of mid-engined cars. Brabham's first racing car was the mid-engined BT1 (originally called the MRD, but renamed when it was realised that the initials had unfortunate connotations in French) in 1961. By 1963 the class had become expensive, the scope for wins in homebuilt or amateur cars was diminishing and the cost of tuning a 1000 cc engine to get up to 120 hp was getting too high. The 1963 series was the last series in the UK and Europe. In the early 1960s, after Formula One was reduced to a 1.5l engine capacity and Formula Two disappeared, Formula Junior suffered from playing two roles, both an introduction to single-seater racing for novices, and the only international single seater category below F1. The latter role meant that costs were pushed up too high for many amateurs (competing against works