LDS is the name given to various single seater racing specials built for the South African Formula One Championship. The "specials" were built by Louis Douglas Serrurier, hence the name. The Mark 1 and Mark 2 models were based on Cooper designs, whilst the Mark 3 was based on the Brabham BT11. Mark 1 and Mark 2 models (1962–1965) used Alfa Romeo 1.5-litre straight-4 engines.
A total of eight LDS cars participated in five World Championship Grands Prix. They did not score any World Championship points.
Although World Championship races held in 1952 and 1953 were run to Formula Two regulations, constructors who only participated during this period are included herein to maintain Championship continuity. Constructors whose only participation in the World Championship was in the Indianapolis 500 races between 1950 and 1960 are not listed.
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