The production of Chevrolet type C Six was so delayed that it became a 1913 model. From April 1912 until end of the year the Little Motor Company(owned by Chevrolet Motor Co.) produced 2999 Little Four's. All had "Little" as the emblem on the radiator (not Chevrolet). Regrettably there is still the published misnomer that Chevrolet built 2999 Classic Sixes as 1912 models as its first year of production.  The first Chevrolet Six was ready for the dealers 2nd Jan. 1913, and was delivered to the first consumer 13th March. During July and August of 1914, all the remaining parts were used-up and the Type C Classic production ended at Flint. Advertisements in August 1913 announced that the Little cars were now to be called "Chevrolets". Its 299-cubic-inch, 6-cylinder engine could reach a top speed of 65 miles per hour. 
The Chevrolet Bowtie has been one of the World's most recognized trademarks since 1913, when William C. Durant first introduced the symbol that represents Chevrolet's winning success! The Bow Tie was used on the renamed Little-cars for the 1914-season(late 1913).
A story in Chevrolet Pro Management Magazine, October 1986, which was copied in the May 1987 G&D, told that W.C. Durant did not copy the design from the wallpaper in a French hotel room, and that according to Mrs. Durant, the bowtie emblem was first seen by her husband in an illustrated Virginia newspaper, while they were vacationing in Hot Springs, Virginia around 1912. Mrs. Durant was quoted as recalling, "We were in a suite reading the papers, and he saw this design and said, 'I think this would be a very good emblem for the Chevrolet' " She did not explain how the newspaper used the emblem.
The Bowtie became an advertising icon, and is still the marque of today's Chevrolet
Chevy's first challenged to the Ford Model T, in 1915 with  the "490' is introduced ($490).
The success of the 490sales was smashing during the introduction, and gave Chevrolet a flying start in the lowprice-market. However, the 490 was already too underpriced when introduced, as all margins had been "cut to the bone" from start. Ford soon reduced his price (several times) and Durant had to enlarge the price for his 490's after some few months. He  could not challenge the continuosly cheaper T-Ford mass-production, so Durant added more comfort (electric lights, starter etc.) and introduced closed bodies to conquer some of the low-price market and he managed. 
Ford was far ahead with much higher volume, but Durant earned far more on each car, which, among other reasons, made him regain the ownership in GM in 1916. 

Chevy's first challenged to the Ford Model T, in 1915 with the "490' is introduced ($490).
1917 The Chevrolets sales hit 100,000 in 1917 due to the sucess of the 490.

Chevy sold it's first truck in 1918 and in that year joined GM Corporation. 
GM nearly went out of business in 1920, when up to 100,000 cars of the "490" were stored at the
factories, unsold for some time.
Chevrolet offered the first radio option in 1924.
1927 was a year that Chev will never forget. Chevrolet outsold Ford by topping
1 million units for the first time. In all but four of the next 55 years,
Chevrolet is the top-selling American nameplate. 
However the most obvious reason why Chevrolet reached # 1 position 1927 was the fact that Ford closed his factories for several months to change all production lines to make the A-Fords, leaving his share of the market open for Chevrolet and Chrysler.