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2008
2009

Key Features

G8 features a 256hp 3.6L V6 engine with Variable Valve Timing along with a 5-speed automatic transmission with Driver Shift Control

G8 GT features a 6-speed automatic transmission with Driver Shift Control coupled with a 361hp 6.0L V8 engine with Active Fuel Management - V8 power with V6 fuel economy⁴

G8 GXP features a 6.2L V8 engine that produces 415hp and 415 lb-ft of torque and a 6-speed automatic transmission with Driver Shift Control; a 6-speed manual transmission is available

Comfort and Sound Package, includes dual-zone automatic air conditioning, AM/FM stereo with 6-disc in-dash CD changer and MP3 playback, 6.5" color LCD and Blaupunkt^TM premium 11-speaker system

Premium Package, includes front bucket leather-appointed seats, 6-way power driver and passenger seat adjusters and leather wrapped steering wheel

Premium Cloth seating standard on the G8 and G8 GT; leather appointed seats in Onyx or Onyx/Red available for the G8 and G8 GT, standard for the G8 GXP

EPA-estimated mileage for the G8’s 3.6L V6 engine is 17/25 MPG (city/hwy); the G8 GT’s 6.0L V8 engine delivers 15/24 MPG (city/hwy); and the G8 GXP’s powerful 6.2L V8 engine with automatic or manual transmission gets 13/20 MPG (city/hwy).

Available 19" wheels with 5-spoke machine-faced aluminum (GT only) or exclusive 19" wheels with 5-spoke polished aluminum standard on G8 GXP

Air conditioning, dual-zone automatic climate control with individual climate settings for driver and front passenger

Available heated driver and front-passenger seats (leather seats only)

Remote vehicle starter system, with lock control, included in key fob

Standard XM Radio, standard with a 3-month trial²

Standard OnStar, The most comprehensive in-vehicle security, navigation, communications, and diagnostics system³

Spoiler, rear low-profile

Powertrain	G8 Sedan	G8 GT	G8 GXP
Sixth Gear Ratio (:1)	Not Available	0.67	0.67
Final Drive Axle Ratio (:1)	2.92	2.92	3.27
Clutch Size
Reverse Ratio (:1)	3.02	3.06	3.06
Fifth Gear Ratio (:1)	0.75	0.85	0.85
Fourth Gear Ratio (:1)	1.00	1.15	1.15
Third Gear Ratio (:1)	1.60	1.53	1.53
Second Gear Ratio (:1)	2.21	2.36	2.36
First Gear Ratio (:1)	3.42	4.03	4.03
Trans Description Cont. Again
Trans Description Cont.	Automatic w/OD	Automatic w/OD	Automatic w/OD
Trans Type	5	6	6
Trans Order Code	M82	MYC	MYC
SAE Net Torque @ RPM	248 @ 2100	384 @ 4400	415 @ 4600
SAE Net Horsepower @ RPM	256 @ 6300	355 @ 5300	415 @ 5900
Fuel System	SFI	SFI	SFI
Displacement	3.6L/217	6.0L/364	6.2L/-TBD-
Engine Type	Gas V6	Gas V8	Gas V8
Engine Order Code	LY7	L76	LS3
Cruising Range - Hwy	475.00	456.00	380.00
Cruising Range - City	323.00	285.00	247.00
EPA Fuel Economy Est - Hwy	25	24	20
EPA Fuel Economy Est - City	17	15	13
Drivetrain	Rear Wheel Drive	Rear Wheel Drive	Rear Wheel Drive
M/T	Not Available	Not Available	Available
A/T	Standard	Standard	Standard
6-Speed A/T	Not Available	Standard	Standard
5-Speed A/T	Standard	Not Available	Not Available
Gasoline Fuel	Standard	Standard	Standard
8 Cylinder Engine	Not Available	Standard	Standard
V6 Cylinder Engine	Standard	Not Available	Not Available
Rear Wheel Drive	Standard	Standard	Standard
6-Speed M/T	Not Available	Not Available	Available
Locking Rear Differential	Not Available	Standard	Standard
Transmission w/Dual Shift Mode	Standard	Standard	Standard

Dimensions	G8 Sedan	G8 GT	G8 GXP
Trunk Volume	17.5 ft³	17.5 ft³	17.5 ft³
Liftover Height	N/A	N/A	N/A
Length, Overall	196.1 in	196.1 in	196.1 in
Front Hip Room	56.7 in	56.7 in	56.7 in
Min Ground Clearance	N/A	N/A	N/A
Second Leg Room	39.4 in	39.4 in	39.4 in
Tread Width, Rear	63.3 in	63.3 in	63.3 in
Tread Width, Front	62.7 in	62.7 in	62.7 in
Height, Overall	57.7 in	57.7 in	57.7 in
Wheelbase	114.8 in	114.8 in	114.8 in
Width, Max w/o mirrors	74.8 in	74.8 in	74.8 in
Front Head Room	38.7 in	38.7 in	38.7 in
Front Leg Room	42.2 in	42.2 in	42.2 in
Second Hip Room	58.0 in	58.0 in	58.0 in
Second Shoulder Room	59.1 in	59.1 in	59.1 in
Second Head Room	38.0 in	38.0 in	38.0 in
Front Shoulder Room	59.1 in	59.1 in	59.1 in
Passenger Volume	107.0 ft³	107.0 ft³	107.0 ft³
Passenger Capacity	5	5	5

Exterior	G8 Sedan	G8 GT	G8 GXP
Sun/Moon Roof	Available	Available	Available
Compact Spare Tire	Standard	Not Available	Not Available
Tires - Rear Performance	Standard	Standard	Standard
Tires - Front Performance	Standard	Standard	Standard
Power Tilt/Sliding Sunroof	Available	Available	Available
Rear Wheel Material	Aluminum	Aluminum	Aluminum
Front Wheel Material	Aluminum	Aluminum	Aluminum
Rear Wheel Size	18 x 8 in	18 x 8 in	19 x 8 in
Front Wheel Size	18 x 8 in	18 x 8 in	19 x 8 in

Interior	G8 Sedan	G8 GT	G8 GXP
Heated Passenger Seat	Available	Available	Standard
Heated Driver Seat	Available	Available	Standard
2nd Row Bench Seat	Standard	Standard	Standard
Bucket Seats	Standard	Standard	Standard
Leather Seats	Available	Available	Selected
Cloth Seats	Selected	Selected	Not Available
Pass-Through Rear Seat	Standard	Standard	Standard
Power Passenger Seat	Standard	Standard	Standard
Power Driver Seat	Standard	Standard	Standard
AM/FM Stereo	Standard	Standard	Standard
CD Player	Standard	Not Available	Not Available
CD Changer	Available	Standard	Standard

Safety	G8 Sedan	G8 GT	G8 GXP
Driver Air Bag	Standard	Standard	Standard
Side Air Bag	Standard	Standard	Standard
Traction Control	Standard	Standard	Standard
Daytime Running Lights	Standard	Standard	Standard
Auto-On Headlights	Standard	Standard	Standard
Child Safety Locks	Standard	Standard	Standard
Brake Assist	Standard	Standard	Standard
Electronic Stability Control	Standard	Standard	Standard
Rear Head Air Bag	Standard	Standard	Standard
Side Head Air Bag	Standard	Standard	Standard
Passenger Air Bag	Standard	Standard	Standard

Chassis	G8 Sedan	G8 GT	G8 GXP
Drum - Rear (Yes or )
Fuel Tank Capacity, Approx	19.0	19.0	19.0
Rear Brake Rotor Diam x Thickness	11.89 x -TBD-	12.76 x -TBD-	12.76 x -TBD-
Front Brake Rotor Diam x Thickness	11.73 x -TBD-	12.64 x -TBD-	12.64 x -TBD-
Disc - Rear (Yes or )	Yes	Yes	Yes
Disc - Front (Yes or )	Yes	Yes	Yes
Brake ABS System (Second Line)	N/A	N/A	N/A
Brake ABS System	4-Wheel	4-Wheel	4-Wheel
Brake Type	Pwr	Pwr	Pwr
Turning Diameter - Wall to Wall	N/A	N/A	N/A
Turning Diameter - Curb to Curb	37.4	37.4	37.4
Lock to Lock Turns (Steering)	2.8	2.8	2.8
Steering Ratio (:1), Overall	N/A	N/A	N/A
Aux Fuel Tank Capacity, Approx	N/A	N/A	N/A
Spare Wheel Material	Steel
Rear Wheel Material	Aluminum	Aluminum	Aluminum
Front Wheel Material	Aluminum	Aluminum	Aluminum
Spare Wheel Size	N/A
Rear Wheel Size	18 x 8	18 x 8	19 x 8
Front Wheel Size	18 x 8	18 x 8	19 x 8
Spare Tire Size	Compact
Rear Tire Size	P245/45R18	P245/45R18	P245/40R19
Front Tire Size	P245/45R18	P245/45R18	P245/40R19
Spare Tire Order Code
Rear Tire Order Code	R1L	R1L	RP2
Front Tire Order Code	R1L	R1L	RP2
Stabilizer Bar Diameter - Rear	N/A	N/A	N/A
Stabilizer Bar Diameter - Front	N/A	N/A	N/A
Shock Absorber Diameter - Rear	N/A	N/A	N/A
Shock Absorber Diameter - Front	N/A	N/A	N/A
Suspension Type - Rear (Cont.)	4-link independent	4-link independent	4-link independent
Suspension Type - Front (Cont.)	MacPherson strut	MacPherson strut	MacPherson strut
Suspension Type - Rear	Performance	Performance	Performance
Suspension Type - Front	Performance	Performance	Performance
Base Curb Weight	3885	3995	4050
Rear Drum Diam x Width
Aluminum Wheels	Standard	Standard	Standard
Power Steering	Standard	Standard	Standard
4-Wheel Disc Brakes	Standard	Standard	Standard
4-Wheel ABS	Standard	Standard	Standard
Tire Pressure Monitoring System	Standard	Standard	Standard

Fuel	G8 Sedan	G8 GT	G8 GXP
EPA Fuel Economy Est - City
EPA Fuel Economy Est - Hwy

Warranty	G8 Sedan	G8 GT	G8 GXP
	Basic: 3 Years/36,000 Miles Drivetrain: 5 Years/100,000 Miles Corrosion: 6 Years/100,000 Miles Roadside Assistance: 5 Years/100,000 Miles	Basic: 3 Years/36,000 Miles Drivetrain: 5 Years/100,000 Miles Corrosion: 6 Years/100,000 Miles Roadside Assistance: 5 Years/100,000 Miles	Basic: 3 Years/36,000 Miles Drivetrain: 5 Years/100,000 Miles Corrosion: 6 Years/100,000 Miles Roadside Assistance: 5 Years/100,000 Miles

¹: The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Pontiac vehicles' destination freight charges.

²: XM Radio requires subscription. Not available in AK or HI. For more information, visit gm.xmradio.com

³: Call 1-888-4ONSTAR (466-7827) or visit onstar.com for details and system limitations.

⁴: EPA-estimated 15 mpg city/24 mpg hwy.