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Pontiac G6: bodies, engines and trims
The Pontiac G6 is a mid-size car produced from 2005 to 2010 and was one of the last Pontiac models. In this article, we look at its bodies (sedan, coupe and convertible), engines, trims and what to check when buying a used G6.
G6 in brief
The G6 replaced the Grand Am and was Pontiac's main mid-size model. It was offered as a sedan, coupe and convertible with a retractable hard top — the latter body style was quite rare for cars of this size at the time.
The car is built on the same GM platform (Epsilon) as the Chevrolet Malibu and Saturn Aura, so some technology and parts are shared. The Pontiac brand no longer exists as of 2010, and the G6 was one of the last models from this manufacturer.
One generation, three bodies
The G6 was produced in just one generation — roughly from 2005 to 2010. The choice mainly depends on the body type, engine and trim level.
The sedan is the most practical, the coupe is the sportiest, and the convertible with a hard top is the most distinctive, although it has a more complex roof mechanism. The GXP versions were the sportiest and offered the most powerful V6.
Engines and transmissions
Over the years, several petrol engines were offered: a 2.4-litre four-cylinder (around 170 hp), a 3.5-litre V6 (around 200 hp), a 3.9-litre V6 and a 3.6-litre V6 (around 250 hp, GXP). They were most commonly paired with a 4-speed or 6-speed automatic transmission.
A smaller four-cylinder engine is more economical, while the V6 versions boast better dynamics. Check the exact gearbox and engine for each car according to the technical specifications.
What to check when buying a used G6
Test the automatic transmission — shifts should be smooth. If the car was imported from the USA or Canada, check the VIN history and recall list.
In the convertible version, test the roof mechanism several times: it should operate without issues and close securely. Inspect the roof seal and trunk lining.
Also, check the electric windows, locks, control buttons, and steering wheel — these parts often wear out in older US-market cars.
Trim levels
Trim names and packages in the US market vary by year; we list the most commonly encountered.
G6 (bazinė)
2005–2010 model yearsBase version.
- Often — 2.4-litre engine
- Simpler interior trim
- Often — steel or small alloy wheels
G6 GT
2005–2010 model yearsMore features and comfort.
- Often — alloy wheels
- Often — V6 engine
- Often — more comfortable interior
G6 GTP
Mostly 2005–2010Sportier version with V6
- 3.5-litre or 3.9-litre V6 (around 200–240 hp)
- Often — sportier suspension setup
- Often — larger alloy wheels
G6 GXP
Mostly 2005–2010The sportiest version
- 3.6-litre V6 (around 250 hp)
- Often — leather interior
- Often — high power and sporty interior
Comparison of G6 versions
| Bazinė | GT | GTP | GXP | |
|---|---|---|---|---|
| Who it's for | For budget-conscious buyers | For daily comfort | For sportier driving | For power enthusiasts |
| Wheels (most often) | Basic | Light alloy | Larger | Larger, light alloy |
| Engine | 2.4-litre | V6 | V6 | 3.6-litre V6 (around 250 hp) |
| Interior | Basic | More comfortable | Sportier | Often leather |
| Price in the used market (relatively) | € | € | €€ | €€ |
Many buyers will be satisfied with the GT and its V6 if performance is key. The GXP is worth considering only after a thorough check, and the convertible requires particularly careful evaluation due to its roof mechanism.
Pros
- Three body styles — sedan, coupe, and convertible
- Powerful V6 engine options
- Shares a platform with the Malibu and Aura, making parts easier to find
- Not overly common in the used market
Cons
- Rare in Lithuania, some parts may need to be sourced from abroad
- The brand is defunct, so original parts are harder to come by
- The convertible's roof mechanism can be expensive to repair
Frequently asked questions
Was the Pontiac G6 sold in Europe?
No, it was intended for the US and Canadian markets, so cars found in Lithuania are typically imported from there.
Which G6 engine is the best?
For most, the 3.5L or 3.9L V6 will do the trick — they offer ample power without the complexity. The 3.6L GXP engine is the most powerful but comes with higher running costs.
Is it worth buying a G6 convertible?
It looks distinctive, but has a complex, finicky folding hardtop. Before buying, test the mechanism and fit several times.
Updated 2026-10-21 · Trim levels and equipment vary by market and model year — check the equipment of the specific car. · Translated automatically
