GM Authority reader Willard asks why the Chevy Colorado uses a four cylinder engine while Nissan Frontier gets a V6. We answer in today's GM Authority Mailbag.

Although Chevrolet in North America had moved on to increase its V6 engines across the lineup by the 1990s, GM Brazil continued to use the Turbo-Thrift 250, although that name no longer called it.

The cylinder deactivation feature will see first use in the 3.9L V6 engines used in the 2007 Chevy Impala, whereas the 3.9L V6 with E85 capability will only be available in the Chevy Uplander ...

Over 20 years after its release, the Pontiac Grad Am GT is looked at fondly by its drivers. but you wouldn't be alone in ...

Dave Bautista has had success as a pro wrestler and a movie actor. Here's a look at Dave Bautista's incredible $850K car ...

Say goodbye to the most reliable V8 engine for full-size trucks. It comes from an unexpected brand and is being replaced.

A Pontiac with a Corvette engine? Unthinkable in GM's early days -- but by the late 1990s, the savings offered by ...

Vehicles tend to be designed as either a front or rear wheel drive car, and not both. This rule has been broken a few times, ...

Our comparison will help you prioritize the trims that are right for you. 310.0-hp, 3.6-liter, V6 Cylinder Engine (Gasoline Fuel) ...

Our comparison will help you prioritize the trims that are right for you. 310.0-hp, 3.6-liter, V6 Cylinder Engine (Gasoline Fuel) ...

The 2025 Nissan Murano crossover debuted with a new look inspired by the Nissan Ariya EV and a variable compression turbo ...