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2008
2009

Key Features

G8 GT features 361 horsepower with Active Fuel Management - V8 power with V6 fuel economy⁴

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

Available Audio system, Blaupunkt^TM premium 11-speaker system, 230-watt with amplifier and sub-woofers

XM Radio, standard with a 3-month trial²

OnStar, The world's most comprehensive in-vehicle security, navigation, communications, and diagnostics system³

Spoiler, rear low-profile

EPA-estimated mileage for 6.0L engine with automatic transmission: 15/24 MPG (city/hwy). 3.6L V6 engine boasts 17/25 MPG (city/highway)

Available 19" Wheels, 5-spoke machine-faced aluminum, (GT only)

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

Powertrain	G8 Sedan	G8 GT
Sixth Gear Ratio (:1)	Not Available	0.67
Final Drive Axle Ratio (:1)	2.92	2.92
Clutch Size
Reverse Ratio (:1)	3.02	3.06
Fifth Gear Ratio (:1)	0.75	0.85
Fourth Gear Rato (:1)	1.00	1.15
Third Gear Ratio (:1)	1.60	1.53
Second Gear Ratio (:1)	2.21	2.36
First Gear Ratio (:1)	3.42	4.03
Trans Description Cont. Again
Trans Description Cont.	Automatic w/OD	Automatic w/OD
Trans Type	5	6
Trans Order Code	M82	MYC
SAE Net Torque @ RPM	248 @ 2100	385 @ 4400
SAE Net Horsepower @ RPM	256 @ 6300	355 @ 5300
Fuel System	SFI	SFI
Displacement	3.6L/217	6.0L/364
Engine Type	Gas V6	Gas V8
Engine Order Code	LY7	L76
Cruising Range - Hwy	475.00	456.00
Cruising Range - City	323.00	285.00
EPA Fuel Economy Est - Hwy	25	24
EPA Fuel Economy Est - City	17	15
Drivetrain	Rear Wheel Drive	Rear Wheel Drive
A/T	Standard	Standard
6-Speed A/T	Not Available	Standard
5-Speed A/T	Standard	Not Available
Gasoline Fuel	Standard	Standard
8 Cylinder Engine	Not Available	Standard
V6 Cylinder Engine	Standard	Not Available
Rear Wheel Drive	Standard	Standard
Locking Rear Differential	Not Available	Standard
Auto Transmission w/Manual Mode	Standard	Standard

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

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

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

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

Chassis	G8 Sedan	G8 GT
Drum - Rear (Yes or )
Fuel Tank Capacity, Approx	19.0	19.0
Rear Brake Rotor Diam x Thickness	11.89 x -TBD-	12.76 x -