The base G8, referred to in Pontiac sales literature as the "G8 Sedan", is available with a 3.6 liter High Feature V6 engine, producing 256 horsepower (191 kW). The only transmission available is a five-speed GM 5L40-E automatic; fuel economy is officially rated at 17 mpg-US (14 L/100 km) city/25 mpg-US (9.4 L/100 km) highway.