was introduced, driving more than in the week. The car was chosen as the pace car for the 1926 Indianapolis 500. The model was designated E-80, the 80 being after the "guaranteed" all-day cruising speed. Acceleration was also brisk, breaking 20 seconds to . Four-speed manual transmission was added in 1930. The attention to luxury and multiple bodystyles was a similar approach to one Mr. Chrysler used as president of the Buick Motor Company, his employer from 1911 to 1919. Chrysler offered a variety of body styles: a two/four-passenger roadster (four passenger if car had the rumble seat), a four-seat coupé, five-passenger sedan and phaeton, and a seven-passenger top-of-the-line limousine. The limo had a glass partition between the front and rear passenger compartments. Imperials could be distinguished from Chrysler products by the use of a distinctive scalloped hood and radiator shell and a wheelbase, which shared an appearance with Packard and the Buick Master Six. The Berline Limousine was listed at US$3,595 ($ in dollars ). The 1927 Imperial Series 80 saw minor engineering improvements, while the high compression "Red Head" straight-six was the only engine available on a choice of , or special order wheelbases. Five two-door coachwork choices included roadsters and convertible, while there were nine sedan, town car, phaeton and limousine choices. The top level Town Car was listed at US$5,495 ($ in dollars ). Standard equipment on roadster and phaeton open-body coachwork selections included wind wings and leather exterior door trim panels, while many cars were painted in contrasting two-tone paint. The convertible was equipped with functioning landau irons. In 1927, an Imperial was driven at a high speed along the Lincoln Highway from San Francisco to New York to Los Angeles, covering a total distance of non-stop, with an average speed of . 1928 offered a wheelbase with the designation Series 80L. Coachwork choices expanded with five provided by Briggs, and six choices from LeBaron, one Derham Convertible Sedan, one Phaeton from Locke, and four Dietrich convertible coupes and sedans, listing the Dietrich Convertible Sedan at US$6,795 ($ in dollars ). Total Chrysler calendar year production was recorded at 160,670, their all-time high pre-war until decades later Model years 1929 and 1930 Series 80L were essentially unchanged from the 1928 version as engineering efforts were focusing on the 1931 Series CG Straight Eight, while there were some engineering advancements, to include thermostatically controlled automatic adjusting