The Atomette was a British three-wheeled cyclecar manufactured by Allan Thomas in Cleveland Street, Wolverhampton in 1922. 
The car was powered by an air-cooled 3.5 hp Villiers two-stroke engine driving the single rear wheel through a three-speed gearbox. The body had no pretence of having a radiator. Prototypes &amp; early cars were single seat and cost 90 guineas (£94.50). Later, cars were made which seated two people side by side. These cost 95 guineas (£99.75). The car could be ordered in a choice of blue, grey or green.
References.
 ;templatestyles src="Reflist/styles.css" / ;