The base engine of the 2010 Cadillac CTS is a 3.6-liter V6 that makes 263 horsepower and 253 pound-feet of torque. Reviewers say it offers plenty of punch and highway passing power. The more advanced option is a Direct Injection version of the same engine. This is the first direct-injection engine an American automaker has built. It pumps pressurized gasoline directly into cylinders in a fine mist, resulting in a higher power output than traditional fuel injection without the need for turbochargers -- and, according to GM -- with cleaner emissions. That engine creates 304 horsepower and 273 pound-feet of torque -- and has allowed some test drivers to manage zero-to-sixty times under 6.5 seconds.
Either engine is available paired with a six-speed manual transmission or a six-speed automatic with manual capability -- although a few reviewers criticize Cadillac for not pairing that transmission with paddle shifters, opting for a slightly awkward console-mounted shifter instead. The Environmental Protection Agency estimates that, in various configurations, the CTS manages 16 to 18 miles per gallon in the city and 25 to 26 mpg on the highway.
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