Cadillac V12 & Cadillac V16
 

Cadillac V12
Cadillac has produced just one V12 engine, in the 1930s. [ul][*]1930-1937 Cadillac V12[*]1960s GMC "Twin Six" - 60° V12 for commercial trucks[*]1963 Cadillac; all-aluminum, 500 CI V-12 engineering program, 6 built, none sold.[*]1980s Cadillac Aluminum V12 - Never produced[*]2000s Cadillac Northstar V12 - Upcoming V12 variant[*]2007 High Feature V12[*]
[/ul] Cadillac V16

Cadillac produced two of only three production, gasoline-fueled V16 engines in history: [ul][*]1930-1937 Series 452[*]1938-1940 Series 90[*]2003 V-16 concept car[/ul]




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