The mid-size Pontiac G6 comes in a dizzying array of configurations, with the most fuel-efficient combination delivering 30 miles per gallon (MPG) on the highway. Pontiac covers all the bases with the 2008 G6: sporty coupe, sleek four-door sedan, and snappy two-door convertible.The Pontiac G6 Convertible is available with two different V6 engines, each mated to a four-speed electronically controlled automatic transmission:
3.5 liter V6, producing 217 horsepower (HP) and 217 foot pounds of torque. Gas mileage: 17 city / 26 highway.
3.9 liter V6, producing 222 HP and 238 foot pounds of torque. Gas mileage: 15 city / 22 highway.
The Pontiac G6 Coupe is available with two different V6 engines:
3.5 liter V6, producing 219 HP and 219 foot pounds of torque. Gas mileage: 17 city / 26 highway.
3.6 liter V6, producing 252 HP and 251 foot pounds of torque. Gas mileage: 17 city / 26 highway.
The G6 Coupe can be configured with the four- or six-speed electronically controlled automatic (with overdrive). The six-speed is standard on the GXP model. The G6 Convertible is a good bit heavier than the Coupe, with the GT Coupe weighing in at 3415 lbs., the GXP Coupe weighing in at 3487 lbs., and the Convertible tipping the scales at 3855 lbs.
The Pontiac G6 Sedan is available with three different engines and the choice of a four- or six-speed electronically controlled automatic transmission, with overdrive:
2.4 liter four cylinder engine, producing 169 HP and 162 foot pounds of torque. Gas mileage: 22 city / 30 highway.
3.5 liter V6, producing 217 HP and 217 foot pounds of torque. Gas mileage: 17 city / 26 highway.
3.6 liter V6, producing 252 HP and 251 foot pounds of torque. Gas mileage: 17 city / 26 highway.
