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The cars at first used American Continental engines with Marendaz cylinder heads and manifolding but later were probably completely built by Marendaz as he redesigned the block. The gearboxes might also have been Marendaz designed but some by Moss were used.
Sales were supported by a considerable racing programme including entries by Captain Marendaz himself up to 1931 and his secretary Miss Dorothy Summers up to 1936. They were also raced by Mr and Mrs A. E. Moss, the parents of Sir Stirling Moss.
1936 July. Winding up order for the business. 
Estimates of production range from about 80 to 120 cars in total, including those from Brixton. Survivors from the Brixton days are rare but several 13/70 and 15/80 range still exist.