Oldsmobile Series 28

The Oldsmobile Series 28, also known as the Autocrat, was a mid-level four seat passenger car produced by GM's Oldsmobile Division for 1911 and 1912. It was based on the top-level Oldsmobile Limited (Series 23, 24, 27) while using a four-cylinder engine, and was manufactured in Lansing, Michigan.

History
The Series 28 was equipped with a large side-valve, in-line 7718 cc four-cylinder engine developing 40 bhp. The bore and stroke was 5 x and the cylinders were cast in pairs. It had a wheelbase of 3150 - 3200 mm based on the bodystyle offered of a touring car, roadster or a 4-door sedan. For 1912 it was renamed the Series 32 with minor appearance changes. Due to the retail price of US$3,500 ($0 in dollars ) for a choice of the touring sedan or runabout while the closed body limousine was US$5,000 ($0 in  dollars ) 1911 saw 1000 vehicles manufactured and in 1912 there were 500 which placed it as a contender against the Packard Four, and made Oldsmobile the top model in GM's catalog against the Cadillac Model A and Buick Model 10. The Autocrat replaced the Oldsmobile Series 22 and was replaced by the Oldsmobile Six as the mid-level model.