Engine for 1907-1908 Ford Model R, Photographed in 1937

Ford's Model R was a more luxurious version of its bestselling Model N, with a larger body, higher seats, a rounded rear deck, and wider fenders. But the Model R still used the same engine: a 149-cubic-inch inline-four rated at 15-18 horsepower. Model R's engine boasted a more sophisticated mechanical lubrication system instead of the N's force-feed oiler.