In 1929 they introduced the famous "Stovebolt" overhead-valve inline six-cylinder engine, giving Chevrolet a marketing edge over Ford, which was still offering a lone flathead four ("A Six at the price of a Four").
In 1933 Chevrolet launched the Standard Six, which was advertised in the United States as the cheapest six-cylinder car on sale.
However the first actual production wasn't until the 1913 model.
So in essence there were no 1911 or 1912 production models, only the 1 pre-production model was made and fine tuned throughout the early part of 1912.
The engine design has also been used over the years in GM products built and sold under the Pontiac, Oldsmobile, Buick, Hummer, Opel (Germany), and Holden (Australia) nameplates.
In 2005, General Motors re-launched the Chevrolet marque in Europe, using rebadged versions of the Daewoo cars produced by GM Korea.
Due to the prominence and name recognition of Chevrolet as one of General Motors' global marques, Chevrolet, Chevy or Chev is used at times as a synonym for General Motors or its products, one example being the GM LS1 engine, commonly known by the name or a variant thereof of its progenitor, the Chevrolet small-block engine. He also incorporated the Mason and Little companies.