Enfield-Allday Motors Ltd was a British car manufacturer based in Sparkbrook, Birmingham, formed through the merger of the previously separate Enfield and Alldays car businesses, which had each produced conventional prewar designs. After the merger, the company's directors pursued a radical departure from convention with a car known as the Enfield-Allday Bullet. This design featured a five-cylinder sleeve-valve radial engine of 1247cc mounted in a tubular lattice frame, with a…