Unfortunately, a number of events began to conspire against continued success for the company. The first was a series of spectacular crashes between several Singer Nine Replicas at the Ards Tourist Trophy race in 1935. The crash itself, had a serious impact at the retail dealership level and the withdrawal of Singer's official involvement in competitive events subsequent to the crash merely compounded the effects of a bad situation. While Singer continued to sponsor their cars under the Autosports banner, this did not offer the same public profile as the presence of an official works team.

The second event was World War II, when Singer, as with many other manufacturers, turned over their facilities to war time production efforts. While the factories were busy, the economics weren't the same as building automobiles for sale to the general public. Coupled with the fact that the Singer car factory was heavily damaged by German bombing raids, this was not a particularly healthy economic time for the company.

After the war, when they returned to automotive manufacturing, Singer effectively re-introduced models based on pre-war design and technology. However, the automotive world in the late forties and fifties was much different than that of the thirties, with the introduction of more advanced technology and design than Singer could provide at the time with their limited resources. Sadly, Singer was never able to regain their pre-war status as a dominant player in the automotive market.

The Nine Roadster	Technical Specifications
The 4A Roadster	Technical Specifications
The 4AB Roadster	Technical Specifications
The 4AC Roadster	Technical Specifications
The 4AD Roadster	Technical Specifications
The SM 1500 Roadster	Technical Specifications
The 4AE Roadster	Technical Specifications
The SMX Roadster	Technical Specifications
The Hunter	Technical Specifications