Sourced production or model lifecycle range used by the main catalog timeline.
CavacRoadster
The complete known Cavac vehicle program. Small Motor Car Company built the underslung roadster at Detroit in 1910 and sent the prototype to the Detroit, Chicago and New York automobile shows in early 1911. Proposed factories in Detroit and Winnipeg did not enter series production. A late-1911 reorganization as Cavac Motor Car Company and move to Philadelphia failed before further models appeared. No model number or separate factory name is documented, so the descriptive Roadster family is used without inventing additional variants.
Dates with their meaning intact
This record contains useful sourced evidence, but it does not yet meet the reference-ready standard. Still needed: attributed imagery. Fields we cannot source stay empty rather than guessed.
At least one prototype was built and exhibited; no series-production total is established.