Stevens-Duryea's first product was a two-cylinder, 5 hp Runabout that sold for $1,200.00 in 1901. No production numbers are known for 1901 but the firm produced 61 cars in 1902 and 483 in 1903. By 1904 the runabout, a tube chassis 6 hp flat twinbuggy runabout victoria, was called the Model L. It had a flat-mounted water-cooled straight-twin engine, situated amidships of the car, four speed gearbox, wire wheels, full-elliptic springs, and tiller steering. Weighing 1300 lb, it sold at US$1300. This would be imported to Britain by Joseph Baker, but would not succeed there; in the U.S., it would survive several years. It was joined in 1905 by the US$2500 Model R, an aluminum-bodied, five-seat, 20 hp four with three-speed gearbox and live axle. The model line grew in 1906, adding a US$2400 runabout and a US$3300 limousine. There was also the new Big Six, with a huge 9.6 liter six-cylinder motor, seven-seater tulipwood body, weighing 2900lbs., at US$5000. In 1907, both the L and R were dropped, and Stevens-Duryea focused on sixes. The company still put four-cylinder engines in its 1908 Model X and 1909 Model XXX. After 1909, it made only six-cylinder engines. The shortage of skilled labor hampered the company; only some fifty units were sold in 1904, and maximum production did not exceed 100 a year. By 1911, a Model Y vehicle was being sold and forms the basis of Machinery's Reference Guide No. 60 Construction and Manufacture of Automobiles describing what is already almost conceptually indistinguishable from vehicles produced in the early 21st century. A remark in the publication emphasises how this configuration was reached in the preceding six years. The 1915 Model D was the company's last new design, an 80 hp 472ci six. It was this year Frank Duryea sold out; production stopped in 1915 because of financial problems and the plant was sold to New England Westinghouse Company. Several former employees bought the name and goodwill and in 1919 restarted production of the D as the Model E, at a stratospheric US$9500. A nicely preserved example of a 1914 Stevens-Duryea is on display at the Winery at the Biltmore Estate. George Vanderbilt had purchased a 1913 model, but traded it in for 1914 since the latter had electric rather than oil-burning headlamps.
Company sold
This did not improve the company's prospects, and it was purchased by Ray Owen in 1923 to produce gas and electric cars under the Rauch and Lang brand, in a factory next to the Stevens-Duryea factory. A new model Stevens-Duryea was announced, the Model G, but this was basically the same as the Model E. After only 28 cars were sold in 1924, manufacture of the Model G continued on an orders received basis until 1927.
