The company, by now named Argyll Motors Ltd. had now become Scotland's biggest marque and soon moved from its premises in Bridgeton, Glasgow to a grand, purpose-built factory in Alexandria, West Dunbartonshire.
The Argyll Motor Works covered 12 acres (4.9 ha), had its own railway line, and was opened in 1906 by John Douglas-Scott-Montagu, 2nd Baron Montagu of Beaulieu.
Production restarted in 1910, under a company now named Argylls Ltd., with a new range of cars including the famed "Flying Fifteen", and a six-cylinder model.
Rubury of Argyll[2] and patented on 18 March 1910 by Henri Perrot and John Meredith Rubury (Patent number 6807) [3] were available from 1911 on, and in 1912 the single Sleeve valve engine designed by company director Baillie P. Burt and J. P. McCollum began production; the entire range featured Burt-McCollum engines by 1914.
In May 1914, Argylls submitted two water-cooled 6-cylinder inline aero-engines to the British War Office as part of a contest to select new aircraft engines.
Car production was resumed on a small scale in the original Bridgeton works under the control of John Brimlow who had previously run the repair department.
The name was re-used in 1976 by a new company who made a mid-engined sports car, the Argyll GT, in Lochgilphead, Scotland.