News Here is a look at the tricks inside GM’s big 2.7-liter four-cylinder

Klockau Classics The 1965 De Ville convertible was a country club chariot

Automotive History Why GM’s V-12 “Engine of the Future” never made it to production

Valuation The 1955–58 Cadillac Eldorado brought a rise in power … and tailfin size

Motorsports Cadillac V-8s: A rich heritage of technology and Performance