Power for the 2006 Mitsubishi Eclipse comes from either a four- or six-cylinder engine. GS models are equipped with a 2.4-liter, single overhead cam, 16-valve four banger with an iron block and aluminum heads. Horsepower reaches 162 at 6,000 rpm, and torque peaks at 162 lb.-ft. at 4,000 rpm. This engine runs fine on low-octane fuel, and is rated as ultra low emissions in California.

GT models feature a 3.8-liter, single overhead cam, 24-valve V6, also with an iron block and aluminum heads. Available at 5,750 rpm are 263 horses, and 260 lb.-ft. of torque shows up at 4,500 rpm. Premium fuel is required.

Regardless of which model is chosen, a manual transmission is standard fare. However, the GT adds an extra cog to the GS’s five-speed gearbox. A Sportronic automatic transmission is optional (four-speed on GS; five-speed on GT).