The article takes a closer look at 4-cylinder vs 6-cylinder engines ... Some manufacturers will prefer a V6 over an I6, though, because they often weigh less, and are typically more efficient ...

Perhaps most notable is the retirement of Nissan’s long-enduring 3.5-liter V6 engine in favor of a variable compression ...

For 2011 Buick will replace the entry-level 3.0-liter V6 engine offered in the LaCrosse with a new 2.4-liter 4-cylinder. The 4-cylinder isn’t likely to make for spritely performance, but it does ...

Toyota's Sienna keeps getting better every year. The current version offers both a 4-cylinder and a V6 engine as well as a pair of 6-speed automatic transmissions. Mileage estimates are up to 26 mpg ...