• Mar 15, 2008
Click above for hi-res gallery of the Pontiac G8 GXP

The Northeast is the Pontiac division's largest market, and the brand -- which has played the stepchild in recent years, banished to the outer limits of exhibition halls -- is finally getting its own coming out party in New York next week. The resurgent Performance Division will flex its muscles at the Javits Center. Joining the 2010 G8 sport truck (and maybe another newcomer sporting the Arrowhead badge) is the highly-anticipated Pontiac G8 GXP.

The new Poncho flagship wears subtle visual tweaks including updated front and rear fascias plus the same 19" HSV wheels that were shown on the G8 concept. More importantly, the GXP packs GM's 6.2L LS3 V8 underhood. In this application (it's also in the Vette, where it makes even more power), the small-block punches out 402 horses and 400 lb-ft of torque rearward via a Tremec 6-speed manual gearbox or a HydraMatic 6L80 auto. (Add another 2 pound-feet of twist if you opt for the latter.) A fully-adjustable suspension helps keep the muscle sedan planted to the tarmac, and stopping power comes from the gang at Brembo. Look for an upgraded interior with glitzier trim and well-bolstered leather sport seats. A Pontiac stand littered with V8s? It's sure been a while. Welcome back to the party, guys. Let the wanton tire destruction begin!

We'll have plenty of live shots for you from the floor on Wednesday.


[Source: GM]

PRESS RELEASE:
PONTIAC ANNOUNCES THE 2009 G8 GXP

High-Performance Flagship Combines Progressive Design and Powerful Performance

NEW YORK – Today Pontiac announced the flagship of its GXP performance series, the G8 GXP high-performance sedan, at the New York Auto Show. This 2009 model will join the Solstice, G6 and Torrent GXP models in Pontiac dealerships in late 2008. The G8 GXP takes the G8's responsive driving experience, refined passenger environment and aggressive good looks to a new level. It also delivers an enjoyable driving experience, thanks to a 6.2L V-8 that produces in excess of 400 horsepower.

"More than just raw power, the GXP delivers the sophisticated yet exciting driving experience that enthusiasts expect in a car costing far more than the GXP," said Jim Bunnell, Buick-Pontiac-GMC general manager

Engine performance

The heart of the G8 GXP is the 6.2L LS3 small-block V-8, currently rated at 402 horsepower (300 kW)* and 402 lb.-ft. of torque (546 Nm)* pending final SAE certification. This engine is the newest member of GM's small-block V-8 family. It features a revised, larger-bore cylinder block, high-flow, L92-style cylinder heads; larger-diameter pistons; unique camshaft and camshaft timing; revised valvetrain with offset intake rocker arms; high-flow intake manifold; and high-flow fuel injectors.

The LS3 engine has an aluminum cylinder block with cast-in-place iron cylinder liners. Larger bores help create a 376-cubic-inch displacement. The block casting also features revisions and machining in the bulkheads to enhance its strength and improve bay-to-bay breathing. New pistons were designed for high-rpm performance.

New, high-flow cylinder heads aid engine breathing and are based on the large port and valve design found on the LS7 engine and other GM L76 engines. The larger-capacity, straighter intake port-design optimizes intake flow to the combustion chamber, an effect augmented by large valves, measuring 2.16 inches (55.0 mm) on the intake side and 1.59 inches (40.4 mm) on the exhaust side.

Pending final testing, the G8 GXP is expected to deliver 0-to-60 mph performance of about 4.7 seconds, and a quarter-mile time of 13.0 seconds at 108 mph.

Six on the floor

A new six-speed Tremec TR6060 manual transmission is optional on the G8 GXP. This next-generation manual smoothly transfers the engine's power and torque to the rear wheels with a reduction in shift throw. The transmission features a host of refinements including premium gear synchronizers; stronger gears, housing, and bell housing; a single-piece counter shaft; and machined gear teeth.

The standard Hydra-Matic six-speed 6L80 automatic transmission is technologically advanced and robust. It uses a clutch-to-clutch operation and an integrated 32-bit transmission controller to deliver smooth and precise shifts. The six-speed has a generous 6.04:1 overall ratio that enables a "steep" first-gear. The result is strong launch acceleration along with "tall" overdrive ratios that lower engine rpms for better fuel economy and reduced noise.

A 3.27 final drive ratio comes with automatic-equipped GXPs, and a 3.70 gear is matched with the manual transmission. A limited-slip differential is standard.

High-performance suspension

The G8 GXP rides on the G8's 114.8-inch (2915 mm) wheelbase with wide front ( 62.7 inches / 1,592 mm) and rear ( 63.3 inches / 1,608 mm) tracks. The four-wheel independent suspension is fully adjustable and is tuned for the highest performance in the G8 family. The GXP's ride and handling was developed and validated on racetracks and highways around the world, including the famed Nürburgring racing circuit. It rewards the driver with sharp, immediate responses, as well as a well-balanced road feel during spirited driving.

The suspension employs a MacPherson strut design in the front and a four-link, coil-over-shock design in the rear. A direct-acting front stabilizer bar, decoupled rear stabilizer bar and lateral ball joints on the rear suspension deliver increased lateral stiffness for more responsive handling. The front suspension features fully adjustable caster, camber and toe; the rear suspension has fully adjustable camber and toe, for more precise tuning.

Steering and brakes

The steering rate for the GXP is tuned to provide immediate response with definitive driver feedback. Like the G8 sedan and GT, the GXP's steering box is located ahead of the front axle line for a quicker, more direct feel.

The Brembo braking system matches the GXP's boost in performance with an equivalent increase in stopping power. The system includes 14-inch (355 mm) vented front and 12.76-inch (324 mm) rear disc rotors, with special quad-piston alloy calipers in front. The alloy calipers on the rear brakes have single-piston actuation. The four-wheel disc brake system includes standard anti-lock brakes and traction control.

Wheels and tires

The GXP rides on 19-inch polished aluminum wheels with a special machined face. Performance-oriented summer P245/40R19 tires are standard, and a comparable all-season tire is available. Combined with the suspension and steering enhancements, this setup gives the GXP exceptional cornering grip.

Exterior styling

The G8 GXP exhibits strong Pontiac design cues. A unique front fascia with a lower splitter and a distinctive rear fascia diffuser contribute to its sporty look. The dual-port grille, fog lamps, bold wheels and confident, wheels-at-the-corners stance are all unmistakably Pontiac traits.

Interior amenities and comfort

The G8 GXP's interior is driver-oriented with aesthetic and tactile details like instruments with a sporty appearance that match the car's performance. Interior materials consist of satin and chrome trim and high-quality textured materials throughout. The instrument cluster glows with crisp, white light on the primary instruments. Pontiac's signature red lighting illuminates the rest of the instrument panel cluster.

Standard comfort and convenience amenities include:
  • Highly bolstered two-tone sport seats with color-coordinated gauge cluster and GXP embroidery
  • Leather-trimmed steering wheel and gear shifter
  • Power-adjustable front seats
  • Fog lamps
  • Alloy sport pedals
  • A 230-watt Blaupunkt audio system
  • XM Satellite Radio
The seats offer firm support to hold occupants in place during aggressive cornering. The standard heated leather seats were designed to deliver excellent comfort during long drives. They are available in Ebony or an Ebony/Red two-tone.

Safety

Maintaining the G8's tradition of a full suite of standard safety features, the G8 GXP includes:
  • Four-wheel disc brakes with ABS and traction control
  • Electronic stability control
  • Seat-mounted thorax air bags and dual-stage frontal air bags for front passengers, with automatic passenger sensing system
  • Roof rail side-impact air bags for both seating rows
  • OnStar


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    • 1 Second Ago
  • 66 Comments
      • 6 Years Ago
      I'm assuming/hoping it's underrated, but why have it lower than the SRT Charger? That's the car it will be compared to. So even if underrated it may be faster in "person", but on paper the Charger would look like the easy choice.
        • 6 Years Ago
        If you like horrible styling and a terrible interior...then yeah, the Charger is the way to go...
      • 6 Years Ago
      Nearly as fast? Lacking .6 seconds in the 1/4 and trapping 7-8mph slower is nearly as fast? Try again.
        • 6 Years Ago
        Lets say the dodge charger is 15@95 with all season 225/60 18 tires and the stock open differential.
        Just about
        http://www.edmunds.com/insideline/do/Drives/Comparos/articleId=124883

        Now lets say you put summer 235/55 18 tires on the stock 7.5x18" wheels, and you pony up the almost $1800 for a quiafe differential.
        http://www.tirerack.com/tires/Spec.jsp?make=Yokohama&model=ADVAN+S.T.&partnum=355WR8ADST&vehicleSearch=false&fromCompare1=yes&place=13
        http://www.autotech.com/quaife/differentials/diff_apps.htm
        Now you have improved performance to 14@100.
        Good.

        For the next model year, the hemi is getting updated with VCT and a dual length intake manifold, so if it makes a real 380hp in the Ram, how much more should it make in the LX. [400hp on premium, keep fingers crossed]
        Just compare/contrast the intake/exhaust systems.
        The Ram has a convoluted intake, whereas the LX has a straightforward one.
        The LX has a nice symmetric dual exhaust, the Ram does not.

        So if Chrysler keeps with the all seasons and open differential [very likely, they are cheap], how much faster will the stock charger be? 14.5. Now if you put summers & Quaife differential, you can drop that down by one second, 13.5@105.

        The G8 GT automatic, with summer tires, is basically as good as it is going to get.
        • 6 Years Ago
        Chrysler has nothing on GM when it comes to powertrains. LSx engines are unbeatable.
      • 6 Years Ago
      Dang, this GXP is pretty hot.

      I know I'm a Dodge fan, but the Charger can't step to this.

      • 6 Years Ago
      Sooooooo glad they didn't trick up the look. I stood next to and sat in a G8 GT on the showroom floor tonight. Stunning in person, pictures don't do it justice. Looks much more upscale than pictures. I'm really glad GM didn't overclad the GXP. Just enough tweeks to the front and rear to distinguish it but still keeps the clean look.
      • 6 Years Ago
      Seems that alot of people are impressed by the mediocre look of this car. This has to be one of the laziest visual upgrades for a high performance model ever. It manages to look worse than the GT.

      The headlights look like a direct rip from a mark 4 astra (which was released in 1998), the wheels don't suit this car, the hood scoops look naff and should be dropped from the entire range and no large spoiler.

      At least the Charger Srt8 looks DIFFERENT than a regular charger which is what i'd expect when buying the high performance version of that particular model.

      The whole look of the G8 is just too generic for me. Its only been released and is already screaming for a facelift.
      • 6 Years Ago
      Right! Then go ahead and get that Charger Srt8 you claim is so different. Pull up to a Pontiac G8 for a run... Who knows, you might have a good day and you also might not.
      It's all about respect.

      Why mess up something that looks this good.

      Go check out this car in the dealerships and then talk to us!

      • 6 Years Ago
      I wonder how much the $$$ premium will be over the GT. If the GXP is 10k more (around 40k), I think I'll stick with the GT...
      • 6 Years Ago
      I just wish that it would come in AWD for those of us in the northeastern U.S.
      • 6 Years Ago
      Nice. Front's a little busy (and please, enough with the fender vents!), but that's de rigueur for Pontiac. The shape is nice and clean, and the powertrain's a worldbeater.
      • 6 Years Ago
      Love the wheels. They remind me of the TL A-Spec.
      • 6 Years Ago
      I wish I could see some here in Europe!
      • 6 Years Ago
      PLEASEEEEEEEEEEEEEEE GM, offer a convertible coupe for those of us that want more than a pony car.
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