265bhp, 420 cu. in. four valves per cylinder twin overhead camshaft inline eight-cylinder engine with hemispherical combustion chambers, three-speed synchromesh transmission, front suspension via semi-elliptical leaf springs and beam axle, rear suspension via semi-elliptical leaf springs and live rear axle, and vacuum-assisted four-wheel hydraulic brakes. Wheelbase: 142.5"
The Model J Duesenberg has long been regarded as the most outstanding example of design and engineering of the Classic Era. Introduced in 1929, trading was halted on the New York Stock Exchange for the announcement. At $8,500 for the chassis alone, it was by far the most expensive car in America. With coachwork, the delivered price of many Duesenbergs approached $20,000, a staggering sum at a time when a typical new family car cost around $500.