1939 Buick Roadmaster 81C. This Buick Roadmaster Convertible Sedan just went through a total body off restoration. This is one of only 311 built for domestic use. It is believed only 13 exist and only 3 or 4 of those known to be completely restored. The Model 81C has an inline 320 Eight-cylinder engine producing 141 bhp., three-speed manual transmission, semi-floating rear axle, pressed steel wheels and four-wheel hydraulic brakes and rides on a 133" wheelbase. The Buick Roadmaster convertible became the official pace car for the 1939 Indianapolis 500. Shown only one time since restored, this car won Best of Show, Prewar American Classic at Greystone Mansion Beverly Hill Classic on May 4, 2014. Owner: John and Leslie Milliken. Photographed at the Pacific Northwest Concours d'Elegance held September 7, 2014.