Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 140,318 pages of information and 227,382 images on early companies, their products and the people who designed and built them.
1898 The company produced its first car, the Traveller; however, series production did not start until 1903/4 with the 7hp model. Larger commercial vehicles of up to 5 tons were also made in the years preceding the First World War and saw service during the conflict.
1902 Detailed review of the Traveller Voiturette.
1906 Produced 8, 10 and 20 h.p. models with shaft-drive. 
1907 Acquired Enfield Autocar Co but the two car making activities were kept separate.
1910 August. Details of the 14-18hp car.
1911 October. Details of models; existing 14-18hp and the 25-30hp; new 12-14hp and 16-20hp
1913 April. Details of the 8-hp car.
1913 April. Advert of 'Doctor's Coupe' car. 
1913-1917 For a list of the models and prices of Cars see the 1917 Red Book
Alldays and Onions continued to be used as a brand of cars until at least 1915. Alldays cars were made at Matchless Works, Birmingham.
c.1919 The Alldays and Enfield brands were merged as Enfield-Allday; production continued until 1925.