Cadillac is returning to its history with a V-16 engine for the Cadillac Sixteen concept car.
Cadillac built 4,400 V-16s between 1930 and 1940. The first version was a 7.2-liter overhead-valve construction that developed between 165hp and 185hp.
That was succeeded in 1938 by a 185hp 7.0-liter version, but construction ended with only 514 units as the US auto industry converted to war production.
But GM has a new twist on the V-16 with its new engine. The pushrod aluminum engine is a massive 13.6-liters in displacement and delivers 1,000hp, but with cylinder deactivation, it could deliver almost 8.5km per liter in fuel economy if GM decides to build it.
There are other intriguing features: