The 2006 Pontiac G6 with the 3.9 L V6 is rated at about 240 horsepower, with roughly 235 lb-ft of torque. Exact output can vary by trim, drivetrain, and emissions calibration. This article breaks down what those numbers mean for performance and what to know when shopping a used G6 with this engine.
Specs at a glance
Below are the core specifications most buyers and enthusiasts look for when evaluating the 3.9 L V6 option in the 2006 G6. The data reflects typical ratings for this engine in that year and may vary slightly by market and configuration.
- Horsepower: 240 hp
- Torque: 235 lb-ft
- Displacement: 3.9 L (238 cu in)
- Layout: 60-degree V6
In summary, the 3.9 L V6 delivers around 240 hp and 235 lb-ft of torque, making the 2006 G6 reasonably quick for its class when paired with the available automatic transmission.
Performance context
With roughly 240 hp, the 3.9 L V6 provides solid acceleration for a mid-size sedan from the mid-2000s. The engine offers strong mid-range torque that helps with highway merging and passing, especially when paired with the car’s optional or standard automatic transmission. Real-world performance can vary based on the exact configuration, condition of the vehicle, exhaust and intake setup, and maintenance history.
Used-car considerations
When evaluating a 2006 G6 with the 3.9 L V6, prioritize verified maintenance history, especially cooling system service, timing chain integrity, and any signs of overheating or gasket wear. A well-maintained example will better preserve the engine’s power output and reliability over time.
Summary
The 2006 Pontiac G6’s 3.9 L V6 is broadly understood to produce about 240 horsepower and around 235 lb-ft of torque. While exact figures can vary by build and market, this engine typically offered strong mid-range performance for its era, contributing to confident daily driving and highway overtakes. Always check the specific vehicle’s documentation and consult a trusted mechanic when buying a used G6.
How fast does a G6 go?
The aircraft can be configured to carry from 11 to 18 passengers over a range of 7,000 nautical miles [nmi] (13,000 km; 8,100 mi) at a top speed of Mach 0.925 (530.6 kn; 982.7 km/h; 610.6 mph).
Is a Pontiac G6 supercharged?
Overview. The Pontiac G6 was first introduced at the 2003 North American International Auto Show as a concept car. The concept used a 3.5 L supercharged V6 that made 285 horsepower and 272 lb ft of torque mated to a 4T65-E electronically controlled automatic transmission.
What was the original price of a 2006 Pontiac G6?
2006 Pontiac G6 Pricing
| Original MSRP | KBB Fair Purchase Price (national avg.) | |
|---|---|---|
| Sedan 4D | $20,655 | $2,675 |
| GT Coupe 2D | $22,955 | $2,975 |
| GT Sedan 4D | $23,180 | $3,000 |
| GTP Coupe 2D | $24,610 | $3,200 |
Is a 2006 Pontiac G6 fast?
The base G6 has a standard 2.4-liter, 167-horsepower four-cylinder engine not offered for the GT or GTP, which both are offered as a coupe or sedan. Even the 201-horsepower V-6 doesn't make the mid-size G6 especially fast because the car is heavy.


