Holden based 2010 RWD Chevy SS coming to US?

We keep hearing from several sources that there will indeed be a big rear wheel drive (or right wheel drive as we like to call it) Chevy sedan coming, based on the Australian Holden. Specifically, a high-performance version of General Motors' Zeta platform that underpins the Pontiac G8 will live on as a Chevy SS model, either badged as a Caprice or an Impala. After all, Bob Lutz himself said that the Pontiac G8 platform was "Kinda too good to waste."

The following was spotted on a Pontiac G8 forum:

"My dealer had sent off pictures to GM of the cable portion of the front seats belts rubbing against the plastic on the side of the front seats. In an email sent back to the dealer, GM says that they have no plans to solve what has already been built but going forward a correction is planned. The email continues: ...a fix is planned for MY11.5 Chevy Police Program and MY12 Chevy SS. The fix will involve a protective sleeve that covers the buckle and section of the buckle stem that rubs on the plastic trim."

MT's first test 2009 Pontiac G8 GXP

Your bargain priced BMW M5 has almost arrived, and Motor Trend has just taken it out for a first drive. It's amazing that anyone and everyone that has had a chance to drive the GXP compares the $40K car to the previous generation $70K M5, but the proof is in the pudding.

By now, you know the G8 is based on GM global rear-drive-chassis architecture born and bred in Australia. The base V-6 and 361-horse V-8 GT versions are currently on sale and playing to solid reviews. The GXP is the only version you can get with a six speed stick, currently. The G8 wasn't designed or built in Detroit, but it's a true Pontiac, and variations on this theme are sold as Holdens, Daewoos, Opels, Vauxhalls-even Buicks in China and Chevys in the Middle East.

Under the hood is the latest version of the venerable Chevy small block, the LS3. Measuring out at 4.2 liters, it grunts out 415 horsepower and as much torque. Only the ZR1 and Cadillac CTS-v's supercharged version put out more power from the factory right now. The GXP even runs on regular gas, but it will carry a gas guzzler tax with it.

With all the added power additional upgrades are a no brainer. Increased stopping power comes from Brembo brake calipers, clamping 14.0-inch rotors front and 12.8-inchers aft. The already competent GT suspension is tuned for the GXP. the biggest change is larger front and rear anti-roll bars. The shocks are stiffer, and the rear balljoints are revised. Nineteen-inch alloy wheels are standard, as is summer-rated performance rubber (all season tires are also available). Calibration of the power rack-and-pinion steering is unchanged.

Styling updates are minor. The front and rear fascias are GXP-specific. Overall the car has a stronger, more muscular look, without giving it away as anything too special in those stoplight races.

Inside you'll find bolstered seats that hold you in place for the ride. Rubber trimmed pedals and a thickly padded steering wheels wrap up the interior mods.

The GXP is slightly bigger and heavier than the previous generation M5, but beats it in performance. The previous-gen M5 ran 0-to-60 in 4.5 seconds; the manual trans G8 GXPs match that. The Bimmer grips to 0.84 g on the skidpad, the Pontiacs stick to 0.88-0.90 g. The BMW stops from 60-0 in 116 feet, the Pontiacs from 111-117.

Overall, the G8 GXP represents a great value, and a nice car all around. It is by no means a world beater, but where else will be find it's level of luxury and performance for the price?

2009 PONTIAC G8 GXP
Base price $39,900 (est)
Price as tested $41,500 (6M, est), $40,800 (6A, est)
Vehicle layout Front-engine, RWD 5-pass, 4-door sedan
Engine 6.2L/415-hp*/415-lb-ft* OHV 16-valve V-8
Transmission 6-speed manual
Curb weight (f/r dist) 3969 lb (52/48%)
Wheelbase 114.8 in
Length x width x height 196.1 x 74.8 x 57.7 in
0-60 mph 4.5 sec
Quarter mile 13.0 sec @ 109.6 mph
Braking, 60-0 mph 117 ft
Lateral acceleration 0.90 g (avg)
MT Figure Eight 26.4 sec @ 0.70 g (avg)
EPA city/hwy fuel econ Not yet rated
On sale in U.S. February 2009
*SAE certified

Pontiac G8 GXP laps Nurburgring in 8:30

The G8 GXP has garnered some serious love from the press and those lucky enough to drive it first hand. The ride has been called a "budget E39 M5" by several folks. And the comparisons may be well deserved, as Der Auto Inshiderfahvenberger is reporting that the GXP ran around the 'Ring in 8:30 -- a mere two seconds off the E39M5's time.

The run was supposedly set by one of the GXP's development engineers – not a professional driver – but as always, we're wary of any development mule setting "unofficial" lap times, particularly when a roll cage is fitted, aiding in chassis rigidity. Regardless, it's hard to argue with a four-door sedan coming in under $40-large and delivering this level of performance.