Editing V16 engine (section)

== Automotive applications ==

=== Production cars ===
[[File:Cadillac452engine.jpg|thumb|right|Early 1930s [[Cadillac V16 engine]] ]]

The first production car to use a V16 engine was the [[Cadillac V-16]], introduced in January 1930. The [[Cadillac V16 engine]] was initially produced with a displacement of {{convert|452|cuin|L|1|abbr=on}}, [[overhead valve engine|OHV]] and a V-angle of 45 degrees. For the 1938 [[Cadillac V16#1938–1940|Series 90]], the engine was revised to a displacement of {{convert|431|cuin|1|abbr=on}}, a [[flathead engine|flathead valvetrain]] and a V-angle of 135 degrees (the latter in order to achieve a lower cowl height). This 431&nbsp;cu. in. version produced as much power as its immediate predecessor while being far less complex, had a stiffer crankshaft that aided durability and smoothness, and even had an external oil filter, a rarity for any car at any price in those days.

The [[Marmon Motor Car Company]] actually began development of a V16 engine in 1927 (earlier than Cadillac). Its development program took longer, however, and the ''Marmon Sixteen'' was released in 1931. This engine had a V-angle of 45 degrees, used pressed steel [[cylinder liner]]s and was constructed mostly of aluminum. Only 400 Marmon Sixteens were produced between 1931 and 1933. 
In 1991, the [[Cizeta-Moroder V16T]] began production, featuring a 16-cylinder engine in a unique configuration. Rather than a conventional V16 layout, the engine was actually two separate sets of [[transverse engine|transversely mounted]] V8 cylinders in a single block with gearing between the two sets providing a single output from the center of the engine to the transmission. Only a few cars were produced before the company ceased operations. In June 2024, Bugatti unveiled the [[Bugatti Tourbillon|Tourbillon]], the successor to the [[Bugatti Chiron|Chiron]], marking a modern revival of the V16 configuration.<ref>{{Cite web |last=Communications |first=Bugatti |date=2025-04-24 |title=Silence to Symphony: The Birth of Bugatti’s new Mechanical Heart – Bugatti Newsroom |url=https://newsroom.bugatti.com/press-releases/silence-to-symphony |access-date=2025-05-08 |website=newsroom.bugatti.com |language=en}}</ref> The Tourbillon features an 8.3L (506 cu in) naturally aspirated V16 engine co-developed with [[Cosworth]]. Weighing just 252 kg in total–lighter than the naturally aspirated [[Aston Martin]] 6.0- litre V12-the engine incorporates titanium connecting rods and a carbon fibre inlet plenum to minimize weight. Paired with three electric motors, the hybrid system delivers a combined 1,800 horsepower, enabling the car to accelerate from 0 to 100km/h in just 2.0 seconds. <ref>{{Cite web |title=Cosworth’s most powerful naturally aspirated hypercar engine unleashed |url=https://www.cosworth.com/news/cosworth-s-most-powerful-naturally-aspirated-hypercar-engine-unleashed/ |access-date=2025-05-08 |website=www.cosworth.com |language=en}}</ref>  

=== Prototype cars ===
[[File:1932_Peerless.jpg|thumb|right|1932 [[Peerless Motor Company|Peerless]] Sixteen prototype]]
The [[Peerless Motor Company]] developed a V16 engine in the early 1930s, yet just a single prototype was built before all automobile production ceased and the company converted its factory into a brewery following [[Twenty-first Amendment to the United States Constitution|the end of Prohibition in the United States]].<ref>Georgano, G. N., ed. (1971). Encyclopedia of American Automobiles (2nd ed.). London: Rainbird Reference Books. pp. 153–154. {{ISBN|0-525-097929}}.</ref>

In the late 1980s, the [[BMW Goldfish V16]] {{convert|6.7|L|cuin|0|abbr=on}} engine was developed, based on BMW's then-new V12 engine. Prototypes were fitted to a long-wheelbase 7 Series and then in the early 1990s to a [[Bentley Mulsanne (1980–1992)|Bentley Mulsanne]].

The 2003 [[Cadillac Sixteen]] concept car was unveiled with a {{convert|13.6|L|cuin|0|abbr=on}} V16 engine, which was based on the General Motors LS V8 engines.<ref>{{cite web |title=First Drive: Cadillac Sixteen |url=https://www.motortrend.com/news/112_0308_cadillac_sixteen/ |website=www.motortrend.com |date=4 August 2003 |access-date=22 July 2020}}</ref> The following year, the [[Rolls-Royce 100EX]] concept car was unveiled with a {{convert|9.0|L|cuin|0|abbr=on}} V16 engine. The car featured in the film ''[[Johnny English Reborn]]'' is powered by this V16 engine.

The 2017 [[Devel Sixteen|Devel Sixteen Prototype]] used a quad-turbo {{convert|12.3|L|cuin|0|abbr=on}} V16 engine.<ref>{{cite web |last1=Perez |first1=Jeff |title=5,000-HP Devel Sixteen Could Debut In Dubai With Working Engine |url=https://www.motor1.com/news/186075/devel-sixteen-hypercar-debut-dubai/ |website=www.motor1.com |access-date=3 June 2020 |language=en}}</ref>

=== Racing cars ===
[[File:1930 Maserati V4 16-cylinder engine.jpg|thumb|right|A 22.5-degree [[Maserati Tipo V4|Maserati V4]] 16-cylinder engine]]
[[File:AutoUnion16Zyl.jpg|thumb|right|[[Auto Union racing car|Auto Union Type C]] engine]]
{{Listen|filename=Auto Union Type A (1934).ogg|title=1934 Auto Union Type A|description=Auto Union Type A}}

The first known use of a V16 in motor racing was the [[Maserati Tipo V4]] car used in Grand Prix racing.<ref>{{cite web |title=A history of innovation |url=https://www.maserati.com/ma/fr/marque/OLD-history-innovations |website=www.maserati.com |access-date=22 July 2020}}</ref> The Tipo V4 debuted at Monza in 1929 and achieved a world speed record of {{convert|152.8|mph|km/h|1|abbr=on|order=flip}} at an event in Cremona, Italy.<ref>{{cite web |title=The Short and Intruiging History of V-16 and W-16 engines |url=https://www.topspeed.com/cars/car-news/the-short-and-intriguing-history-of-v-16-and-w-16-engines/ |website=TopSpeed.com |date=29 June 2020 |access-date=22 July 2020}}</ref>

At the [[1931 Indianapolis 500]], a custom-built V16 engine was fitted to a [[Cord (automobile)|Cord]] "supercar" driven by Shorty Cantlon. The car was competitive, charging from 26th on the grid to 3rd, but was slowed by unreliability, further exacerbated by having to change all sixteen spark plugs. The following year, Bryan Saulpaugh qualified the car in third position. The car suffered a broken oil line on lap 55 and their race was over. Shortly after the race the V16 was removed and replaced with a conventional Miller four-cylinder engine.<ref>[http://www.rmauctions.com/featurecars.cfm?SaleCode=MO09&CarID=r207&fc=0 1931 Miller V16 Racing Car] {{Webarchive|url=https://web.archive.org/web/20090712071351/http://www.rmauctions.com/FeatureCars.cfm?SaleCode=MO09 |date=2009-07-12 }}, ''RM Auctions'', Retrieved 2010-06-14</ref>

The mid-engined [[Auto Union racing car|Auto Union]] ''Type A'', ''Type B'' and ''Type C'' Grand Prix cars of 1933 to 1938 were powered by supercharged {{convert|4.4|L|cuin|0|abbr=on}} engines. Due to a rule change in 1938, these were replaced by a V12 engine for the ''Type D'' racing car. Prior to this rule change, the [[Alfa Romeo Tipo 316]] competed at the 1938 Tripoli Grand Prix powered by a 60-degree V16 engine, and in 1939 an unusual 135-degree V16 engine was installed in the [[Alfa Romeo Tipo 162]].<ref name="alfaklub.dk">{{cite web|url=http://www.alfaklub.dk/_kb_mthclassic_2001_1.html|title=ALFA ROMEO TIPO 162|access-date=2007-12-18|work=alfaklub.dk |archive-url = https://web.archive.org/web/20080601033405/http://www.alfaklub.dk/_kb_mthclassic_2001_1.html <!-- Bot retrieved archive --> |archive-date = 2008-06-01}}</ref>

The only known use of a V16 engine in the post-World War II era is the [[British Racing Motors V16|British Racing Motors (BRM) V16 engine]] used in Formula One racing from 1950 to 1955. The engine was a {{convert|91|cuin|L|1|abbr=on|order=flip}} supercharged design, which was unsuccessful despite its high power output. Officially, it produced {{convert|550|hp|kW|abbr=on|order=flip}} but probably delivered around {{convert|600|hp|kW|abbr=on|order=flip}}.<ref>Nye, Doug (2003). BRM: Front Engined Cars, 1945-1960. Volume 1. Motor Racing Publications. {{ISBN|0-947981-37-3}}.</ref> The car was difficult to drive, due to the power band being in a narrow range and at high RPM.
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