Show in January 1915, William C. Durant the head of Chevrolet (and founder of GM), launched the Chevrolet Four-Ninety, a stripped-down version of the Series-H, to compete with Henry Ford's Model T, and went into production in June. To aim directly at Ford, Durant said the new car would be priced at (the source of its name), the same as the Model T touring. Its introductory price was , however, although it was reduced to later when the electric starter and lights were made a option. Henry Ford responded by reducing the Model T to . In 1916 Edward G. Budd's first big order for the Budd Company was from the Dodge brothers, who purchased 70,000 bodies, mounting the steel bodies onto conventional chassis frames. 1920s During the 1920s Edward G. Budd's pressed steel bodies were fast replacing traditional coachbuilt bodies all around the world. These were fully closed roofed bodies, until this time open tourer bodies were the standard body on the market. Budd envisioned pushing his technology even further, and in 1924 he found another visionary in André Citroën. By 1934, they had developed the Citroën Traction Avant, the first unibody, pressed-steel automobile. Budd also pioneered the use of electric arc welding in automobile manufacturing. It would be the 1930s before this technology was generally applied to economy cars. The cyclecar was an attempt in the period before 1922 in the post-First World War austerity period, as a form of "four-wheeled motorcycle", with all the benefits of a motorcycle and side-car, in a more stable package. In 1920 Trojan in Britain made its first series of six cars from a works in Croydon and the final revised production version was shown at the 1922 London Motor Show. An agreement was reached with Leyland Motors to produce the cars at their Kingston upon Thames factory where work on reconditioning ex RAF wartime trucks was running down. This arrangement would continue until 1928 when Leyland wanted factory space for truck production. During the nearly seven years of the agreement 11,000 cars and 6700 vans were made. The car known as the Trojan Utility Car went onto the market at £230, reducing to £125 in 1925, the same as a Model T Ford. Nothing was conventional. Rather than a chassis the car had a punt shaped tray which housed the engine and transmission below the seats. This is a similar idea