Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,686 pages of information and 232,152 images on early companies, their products and the people who designed and built them.
of XL Works, Gosford Street, Coventry, makers of cycles, motorcycles and cars.
1886 Formed as Calcott Brothers and West in East Street, Coventry with William Calcott, his brother James Calcott and Enoch John West as partner. The company made XL cycles from their premises in Much Park Street, and subsequently Far Gosforth St Works.
1891 Offering eight models.
1896 The company was registered on 29 August, to acquire the business of cycle manufacturers. 
1911 Added a 1.5hp model with an inclined engine mounted in a loop frame, with belt drive and sprung forks.
1912 The range comprised a 2.25hp, 237cc lightweight; later joined by a stretched 2.5hp, 292cc model.
1913 Both those models continued. Some used their own 249 / 292cc engine.
1913 May. Details of the four-cylinder light car with three-speeds.
1913-1917 For a list of the models and prices see the 1917 Red Book
1914 The 2.25hp model was still listed together with a 2hp model fitted with a 170cc Precision engine that had ohv set horizontal to the cylinder, a two-speed gearbox built in-unit with the crankcase, belt final-drive and Druid forks.
1915 Only the 2.25hp model was listed. It was the last year of production.
1919 January. Advert for the Classic Light Car by Calcott Brothers of Coventry. 
1921 L. J. Shorter appointed as Chief Engineer