The Legacy of Cadillac’s V-16 Engine
Cadillac made history with the debut of the world’s first production V-16 engine for a road car at the 1930 New York Auto Show. This 16-cylinder, 7.4L engine embodied Cadillac’s “Standard of the World” identity, cementing its position at the top of the luxury automotive market. The original Cadillac V-16 road cars were discontinued in 1940 due to a sales slowdown partially caused by World War II. GM shifted its production to support the war effort from early 1942 until 1945, halting consumer vehicle production for over three years.

Over 70 years later, the Cadillac V-16 returned at the 2003 Detroit Auto Show in the form of the stunning Sixteen concept car. Built to celebrate Cadillac’s 100th anniversary, the Sixteen was a sleek, low-slung four-door measuring 18.6 feet in length, exemplifying the bold exterior designs Cadillac became known for. The centerpiece was its 13.6L V-16 engine, dubbed XV16, which sat under a unique dual-panel aluminum hood.
The XV16 Engine: Power and Efficiency
The XV16 engine utilized a pushrod design derived from GM’s small-block V-8 engines, producing 1,000 horsepower and 1,000 lb-ft of torque while being 64 pounds lighter than GM’s 8100 Vortec V-8. This was achieved through the use of lightweight aluminum alloys. GM’s powertrain team met the challenge of developing an engine with “outstanding quality, reliability and durability, plus turbine-like levels of noise, vibration and harshness” in just eight months.

Luxurious Interior
The Sixteen’s interior was designed to replicate the luxurious feel of post-war V-16 models, featuring hand-stitched Tuscan leather seats, silk carpets, walnut burl veneer, and a Bvlgari clock on the dashboard. Other luxurious appointments included a rear-seat DVD player, Bose sound system, and crystal instrument cluster dials.

Although the Cadillac Sixteen never entered production, it showcased Cadillac’s technological capabilities and future design direction. It inspired the hand-built, ultra-luxury Cadillac CELESTIQ, which continues Cadillac’s legacy of bold design, advanced technology, and craftsmanship, reinforcing its position as the Standard of the World.