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|Manufacturer||Cadillac (General Motors)|
|Body and chassis|
|Class||Full-size luxury car|
|Body style||4-door sedan|
|Layout||Front-engine, rear-wheel drive|
|Engine||13.6 litre 32-valve V16|
|Transmission||4 speed automatic|
|Wheelbase||3,556 mm (140.0 in)|
|Length||5,672 mm (223.3 in)|
|Width||2,029 mm (79.9 in)|
|Height||1,392 mm (54.8 in)|
|Curb weight||2,270 kg (5,004.5 lb)|
The vehicle is equipped with a Cadillac proprietary-developed aluminum 32-valve V16 engine displacing 13.6 liters (~830 cu. in), which was exclusive to the Sixteen and based on the GM Generation IV LS architecture. It is mated to a four-speed, electronically controlled, automatic transmission driving the rear wheels. The engine features fuel-saving Active Fuel Management "Displacement on Demand" technology, which could shut down either twelve or eight of the cylinders when the full output was not needed. The V16 was capable of 16.65 mpg under normal conditions. The engine was said to produce a minimum of 1,000 bhp (746 kW; 1,014 PS) and at least an equal amount of torque at 1,000 lb·ft (1,400 N·m). using no form of forced induction. The car itself weighs about 2,270 kilograms (5,000 lb).
The car referenced the Cadillac V-16 of the 1930s. The actual design of the car was a combination of Cadillac's current "Art and Science" design theme and 1967 Cadillac Eldorado cues. Additional original design elements were provided by an in-house design competition led by GM Vice President Bob Lutz. The Sixteen has the Cadillac logo carved out of solid crystal on the steering wheel and a Bulgari clock on the dashboard.
Although the Sixteen remained a concept car, its design language was implemented in Cadillac's subsequent vehicles, most noticeably on the 2008 Cadillac CTS. Since its unveiling there have been resurfacing rumors about a possible very limited production of an exclusive Cadillac halo model. A scaled-down version of the car, referred to as the ULS (Ultra Luxury Sedan) or XLS, with a standard V8 and an optional V12 (the latter was to be called the Cadillac Twelve), had been rumored for production since 2005, but was eventually shelved in favor of the Cadillac XTS.
Ever since the Sixteen was first unveiled there have been resurfacing rumors, speculation and high hopes of automotive journalists and aficionados about a possible limited production of an exclusive Cadillac halo model, such as the Sixteen, to be the "ultimate flagship" of the brand and sit atop of the upcoming flagship, as previewed by the Ciel concept of late 2011.
It was on the episode of Ride with Funkmaster Flex at the 2003 New York International Auto Show.
In the 2006 comedy film Click starring Adam Sandler, Sandler's character is seen driving a Cadillac Sixteen when he visits his family in the year 2017.
In the 2011 film Real Steel, starring Hugh Jackman, the child's parents are seen getting in and out of a Cadillac Sixteen at around 18 minutes in, as Jackman's character collects his money and his child.
- "2003 Cadillac V Sixteen Technical specifications". www.carfolio.com. Archived from the original on 2013-02-28. Retrieved 2013-10-04.
- "Cadillac Sixteen Concept V-16 Engine - Tech Stuff". www.caranddriver.com. Retrieved 2016-05-26.
-  James May: "[...] sixteen cylinders, but if you're just cruising along you only use four cylinders, if you go to overtake someone you get eight cylinders, and its only when you flatten it, as the Americans would say, that you get all sixteen. Now, that means that this two-and-half tonne twenty-foot-long car will do 20 mpg, which is actually very impressive."
- walter j keegan jr. (18 January 2005). "Cadillac shores up Ultra Luxury Sedan". Autoblog.
-  Real Steel - Full Movie (YouTube)
|Wikimedia Commons has media related to Cadillac Sixteen.|
- Mayersohn, Norman (August 1, 2003), "Driving; Dream Car? Don't Count On Driving Anywhere", New York Times
- The Cadillac Database - The Cadillac V-16s of 1930 to 1940
- www.companybest.ru/cadillac.html The review of the Russian journalist, photo