Adrian Squire (1910-1940), who had worked at Bentley and MG, founded Squire Motors at Henley-on-Thames at the age of 21, later renamed the Squire Car Manufacturing Company. His car was a Grand Prix car turned into a road car. When Frazer Nash temporarily set aside the British Anzani engine, Squire took up its R1 unit, a 1,496 cc twin-cam producing 100 bhp, with the Squire emblem cast into it, and supercharged versions were offered.
Squire designed and built a rigid chassis in two lengths, for two- or four-seat bodies, with elegant coachwork by Vanden Plas. The cars were renowned for their top speed and exceptional brakes, but a Vanden Plas two-seater cost £1,220, which was Bugatti money, and even the cheaper Markham-bodied version cost £995. Very few were sold; the reference book A-Z of Cars of the 1930s puts production at seven, and financial difficulties ended it in 1936.
Two or three more cars were assembled from leftover parts by Val Zethrin in 1938-39. Adrian Squire went on to Lagonda and was working for the Bristol Aeroplane Company when he was killed in an air raid in 1940.