| |
GT |
V-6 |
| BODY |
| Construction |
Unitized welded steel body,
aluminum hood |
Unitized
welded steel body,
aluminum hood |
| POWERTRAIN
AND CHASSIS |
| ENGINE |
|
|
|
| Type |
4.6L 90-degree V-8;
Aluminum block and heads |
4.0L
60-degree V-6;
Iron block, aluminum heads |
|
| Manufacturing
location |
Romeo, Mich. |
Cologne,
Germany |
|
| Configuration |
V-8 |
V-6 |
|
| Intake manifold |
Composite shell-welded
Single-runner, charge
motion control valves |
Composite,
shell-welded
with internal runner pack
|
|
| Exhaust
manifold |
Cast iron |
Cast iron |
|
| Crankshaft |
Cast iron |
Cast iron |
|
| Throttle body |
55-mm dual-bore electronic |
65-mm
single-bore electronic |
|
| Valvetrain |
SOHC, 3 valves per cylinder,
variable camshaft timing |
SOHC, 2
valves per cylinder
|
|
| Valve diameter |
Intake: 33.8 mm
Exhaust: 37.5 mm |
Intake:
46.0 mm
Exhaust: 39.0 mm |
|
| Pistons |
Hypereutectic aluminum |
Hypereutectic
aluminum |
|
| Connecting rods |
Cracked powdered metal
with floating wristpins |
Forged
steel
|
|
| Ignition |
Coil-on-plug, high-thread-insert
spark plugs |
Distributorless
with
coil pack |
|
| Bore x stroke |
3.55 x 3.54 in. /
90.2 x 90.0 mm |
3.95 x
3.32 in. /
100.4 x 84.4 mm |
|
| Displacement |
281 cu. in. / 4,606 cc |
245 cu.
in. / 4,009 cc |
|
| Compression
ratio |
9.8:1 |
9.7:1 |
|
| Engine control
system |
Spanish Oak (Motorola MPC-565) |
Spanish
Oak (Motorola MPC-565) |
|
| Horsepower |
300 @ 5,750 rpm |
210 @
5,250 rpm |
|
| Horsepower per
liter |
65.2 |
52.5 |
|
| Torque |
320 lb.-ft. @ 4,500 rpm |
240
lb.-ft. @ 3,500 rpm |
|
| Redline |
6,250 rpm |
6,100 rpm |
|
| Top speed |
143 mph |
112 mph |
|
| 0-60 mph
acceleration |
5.1 seconds
(coupe as tested by Motor Trend Magazine) |
|
|
| Recommended
fuel |
87 octane |
87 octane |
|
| Fuel capacity |
16.0 gal. |
16.0 gal. |
|
Projected fuel
economy Automatic
Manual |
18/23
17/25 |
19/25
19/23 |
|
| Fuel injection |
Electronic returnless,
Sequential |
Electronic
returnless,
Sequential |
|
| Emission
control |
Closed loop with catalyst |
Closed
loop with catalyst |
|
Emissions
(tailpipe/evaporation)
Automatic
Manual |
Tier 2, Bin 5 / LEV II
Tier 2, Bin 5 / LEV II |
Tier 2, Bin 5 / LEV II
Tier 2, Bin 5 / LEV II |
|
Green States
emissions (tailpipe/evaporation)
Automatic
Manual |
LEV II
LEV II |
LEV II
LEV II |
|
| Oil capacity |
6.0 quarts |
5.0 quarts |
|
| Recommended oil |
5W20 |
5W30 |
|
| Coolant
capacity |
12.7 quarts |
12.5
quarts |
|
| DRIVETRAIN |
|
|
|
| Layout |
Rear-wheel drive |
Rear-wheel
drive |
|
| TRANSMISSION |
|
|
|
| Standard |
Five-speed manual
(Tremec 3650) |
Five-speed
manual
(Tremec T-5) |
|
| Gear ratios |
|
|
|
| 1st |
3.34:1 |
3.75:1 |
|
| 2nd |
2.00:1 |
2.19:1 |
|
| 3rd |
1.32.1 |
1.41:1 |
|
| 4th |
1.00:1 |
1.00:1 |
|
| 5th |
0.68:1 |
0.72:1 |
|
| Final
drive |
3.55:1 |
3.31:1 |
|
| Optional |
Five-speed automatic
(5R55S) |
Five-speed
automatic
(5R55S) |
|
| Gear ratios |
|
|
|
| 1st |
3.25:1 |
3.25:1 |
|
| 2nd |
2.44:1 |
2.44:1 |
|
| 3rd |
1.55.1 |
1.55.1 |
|
| 4th |
1.00:1 |
1.00:1 |
|
| 5th |
0.75:1 |
0.75:1 |
|
| Final
drive |
3.31:1 |
3.31:1 |
|
| SUSPENSION |
|
|
|
| Front |
Reverse-L independent
MacPherson strut,
34-mm tubular stabilizer bar |
Reverse-L
independent
MacPherson strut,
28.6-mm tubular stabilizer bar |
|
| Rear |
Three-link solid axle
with coil springs, Panhard rod,
18-mm solid stabilizer bar |
Three-link
solid axle
with coil springs,
Panhard rod |
|
| STEERING |
|
|
|
| Type |
Rack and pinion with power assist |
Rack and
pinion with power assist |
|
| Ratio |
15.7:1 |
15.7:1 |
|
| Turns
lock-to-lock |
2.83 |
3.13 |
|
| Turning circle
curb-to-curb |
38.0 ft. |
36.0 ft. |
|
| BRAKES |
|
|
|
| Type |
Four-wheel disc |
Four-wheel
disc |
|
| Front |
Vented disc, twin-piston
43-mm floating
aluminum calipers |
Vented
disc, twin-piston
43-mm floating
aluminum calipers |
|
| Swept area |
316 mm (12.4 in.) x 30 mm |
293 mm
(11.4 in.) x 30 mm |
|
| Rear |
Vented disc, single-piston
43-mm floating
iron calipers |
Vented
disc, single-piston
43-mm floating
iron calipers |
|
| Swept area |
300 mm (11.8 in.) x 19 mm |
300 mm
(11.8 in.) x 19 mm |
|
TIRES AND
WHEELS
(TYPE, SIZE) |
|
|
|
| Standard |
P235/55ZR-17 98W
17 x 8 in. 5-spoke aluminum wheels
|
P215/65R-16
96T
16 x 7 in. 10-spoke bright
painted metallic wheels |
|
| Recommended
tire pressure (front/rear) |
32/32 psi
|
35/35 psi
|
|
| Optional |
P235/55ZR-17 98W
17 x 8 in. 10-spoke machined
cast aluminum wheels
|
P215/65R-16
96T
16 x 7 in. 10-spoke bright
painted metallic wheels with
three-spoke spinner |
|
| Recommended
tire pressure (front/rear) |
32/32 psi
|
35/35 psi
|
|
| DIMENSIONS
(inches unless otherwise noted) |
| EXTERIOR |
|
|
|
| Wheelbase |
107.1 in. |
107.1 in. |
|
| Overall length |
188.0 in. |
187.6 in. |
|
| Overall width |
73.9 in. |
73.9 in. |
|
| Overall height |
55.7 in. |
55.7 in. |
|
| Track width,
front/rear |
61.9 in. / 62.5 in. |
62.4 in. /
63.0 in. |
|
| Ground
clearance |
5.71 in. |
5.73 in. |
|
| INTERIOR |
|
|
|
| Seating
capacity |
4 |
4 |
|
| Front headroom |
38.8 in. |
38.8 in. |
|
| Front legroom |
42.7 in. |
42.7 in. |
|
| Front shoulder
room |
55.4 in. |
55.4 in. |
|
| Front hip room |
53.6 in. |
53.6 in. |
|
| Rear headroom |
36.3 in. |
36.3 in. |
|
| Rear legroom |
30.3 in. |
30.3 in. |
|
| Rear shoulder
room |
45.0 in. |
45.0 in. |
|
| Rear hip room |
45.2 in. |
45.2 in. |
|
| Passenger
volume |
81.6 cu. ft. |
81.6 cu.
ft. |
|
| Cargo volume |
9.7 cu. ft. |
9.7 cu.
ft. |
|
| BASE CURB
WEIGHT (POUNDS) |
|
|
|
| Manual
transmission |
3,614 lbs. |
3,476 lbs. |
|
| Automatic
transmission |
3,658 lbs. |
3,526 lbs. |
|
| Weight
distribution (f/r) |
53/47 |
53/47 |
|
| SAFETY |
| Safety belts |
Height-adjustable lap and
shoulder belts with load-limiting retractors and pyrotechnic
pretensioners for front seating positions
Three-point safety belts for all seating positions
BeltMinder™ safety-belt reminder chime for driver and front passenger |
|
| Air bags |
Dual-stage driver and
passenger front air bags
Optional seat-deployed side air bags for driver and front passenger |
|
| Advanced
restraints |
Personal Safety System™,
including dual-stage air bags with crash severity sensor, driver
seat-position sensor and front passenger sensing system
LATCH anchors for rear outboard seats |