1907 American Underslung 50/60 HP Roadster Sold for $407,000 at 2004 RM Auctions Chassis number : 1402 50hp rated (60hp est.) 476.5 cu. in. four-cylinder T-head engine, five inch bore and five inch stroke, cast in pairs, mechanically operated valves, three-speed sliding gear manual transmission, four-wheel semi-elliptic leaf springs with floating rear axle, rear-wheel internal expanding drum brakes and external expanding transmission brake. Wheelbase: 110'
note: The images shown are representations of the 1907 American Underslung and not necessarily vehicles that have bought or sold at auction.