At the heart of the W-31 package was a 350 cubic-inch ... and an automatic transmission," according to Hemmings. While 325 horsepower was respectable in 1968, other engines had higher numbers.

The 2010 Lincoln MKS, the first Ford Motor Company vehicle to offer the 3.5-liter EcoBoost engine and 6F-55 transmission package, will deliver an impressive 355 horsepower and a responsive 350 ft.- ...