In homage to the 16-cylinder cars of 1930s, General Motors presented the glamorous rear-drive Cadillac Sixteen concept car. This luxurious four-door hardtop incorporated an all-glass roof, without B-pillars, and power-operated dual hood panels that were hinged about a center spine that ran the length of the expansive hood. Underneath that aluminum hood, resting in the sculpted engine bay, was the V-16. With a displacement of 13.6 liters, the power plant produced 1000 horses and 1000 lbs.-ft. of torque. Large wheel arches were designed to accommodate the 24-inch polished aluminum wheels. Premium materials filled the push interior, blending Tuscany leather, fine woods, precision-cut metals and crystal, plus a dashboard center-mounted Bvlgari clock.