"The G6 coupé and convertible are uniquely Pontiac vehicles that are great additions to the family started by the G6 sedan," said Jim Bunnell, Pontiac-GMC general manager. "The G6 coupé delivers outstanding performance and generous interior room, and the G6 is the only hardtop convertible that has room for four adults."
Both coupé and convertible G6 models feature a 2+2 seating configuration with leather-wrapped steering wheel and highly-bolstered sports seats; available leather and heated seating; a premium audio system with in-dash six-CD changer; dual-stage frontal air bags; optional remote start and XM Satellite Radio. In addition the G6 coupé provides a rear-seat console with cup holders and available side and head curtain air bags; sunroof and Onstar.
A true 2+2
The G6's rigid, European-designed structure and class-leading 112.3" wheelbase is the foundation for the
coupé and convertible models. It provides optimum interior space, along with excellent ride and handling
characteristics. Both coupé and hardtop convertible offer a true 2+2 seating configuration, with highly-bolstered
sports seats. Although smaller than most other midsize fwd coupés, the G6 coupé makes optimum use of the
long wheelbase, providing the most rear legroom in it's class. Headroom, too, is generous, with the rear seat design
providing an extra measure of space to accommodate the rake of the roofline.
Both the coupé and convertible have easy access doors. They're 6 inches (152.4 mm) longer than the G6 sedan's front doors and are about 2 or 3 inches longer than doors on most competitors' coupés. Those extra inches help take the squeeze out of rear seat ingress/egress, and the doors feature special counterweights that provide a lighter feel when opening or closing. Also aiding rear seat access is the front passenger seat, which slides forward when the seatback is released. The driver seat also features a release button that is easily accessible by rear seat occupants.
Compared with the G6 sedan, the coupé and convertible models have all-new body panels rearward of the A-pillars. Large, wraparound tail lamps on both models create a distinct look compared to the G6 sedan. LED-lit Center High Mounted Stop Lamps (CHMSLs) on the coupé and convertible differ from the traditional incandescent bulbs of the sedan. The coupé's CHMSL is located at the base of the rear window, while the convertible's is a wider lamp incorporated into the decklid, creating a distinct design element.
Convertible cues
The G6 hardtop convertible is built on the same platform as the coupé, but was strengthened in key areas to
bolster vehicle rigidity. As a result, the G6 hardtop convertible has the same solid ride and precise panel fit as the G6
coupé.
A unique two-piece clamshell-style retractable hardtop was engineered with input from renowned German coachbuilder Karmann. The top's backlight is glass with a standard defogger. While retractable hardtops are now the industry standard for 4-seat compact convertibles and 2-seat roadsters, this is the first application in a larger midsize convertible. The world's largest retractable hardtop was required to enclose the G6's spacious 4-seat interior.
A double-hinged trunk lid facilitates stowing the top. It opens like a conventional trunk for cargo storage, but is reverse-hinged to accept the folding hardtop. A hard tonneau cover automatically appears as part of the hardtop retraction process, and there is no visible "stack" when the top is down — it simply disappears into the storage compartment. It operates with the touch of a single button, and the entire process takes less than 30s. When the top is stowed, the trunk still provides 1.8 cu-ft (61 L) of cargo space. With the top up, trunk capacity increases to 5.8 cu-ft (164 L).
The door glass for the coupé and convertible automatically indexes (up and down) about 0.25" (6 mm) when the doors of the vehicle are opened and closed. This precision feature is more commonly found on upscale European cars, and is an example of the G6's attention to detail. Additionally, a specially insulated headliner further quiets the raised top. It provides both acoustic and thermal protection. G6 convertibles are subjected to a stringent water test at the assembly plant.
Performance
GT models are powered by the LX9 3.5 L V6, which produces 200 hp (149 kW) @ 4800 rpm with 220 lb-ft of torque (302
Nm) @ 4400 rpm. The 3500 engine is backed by the Hydra-Matic 4T45-E electronically controlled four-speed automatic
transmission with manual shift mode. GTP models are powered by the all-new LZ8 3.9 L HO V6 with VVT, which is rated at
240 hp (179 kW) @ 5900 rpm with 245 lb-ft of torque (339 Nm) at just 2800 rpm. In addition to the standard Hydra-Matic
4T65-E with manual shift mode, the GTP coupé is also available with Fiat-GM Powertrain's F40-6 6-speed manual
transmission.
Both powertrains are channeled into a responsive, four-wheel independent suspension system that features MacPherson struts in the front and a four-link design in the rear. Similar to the G6 sedan, the coupé and convertible models are tuned to provide a controlled, sporty ride with reduced body roll during cornering. GTP models are tuned for optimal performance driving, including the use of a hydraulic power steering system.
All coupé and convertible models come with four-wheel disc brakes and four-channel ABS. The enhanced traction system is available on GT and GTP, and Pontiac's Dynamic Vehicle Control System is available on GTP models. The G6 coupé are equipped with 17" wheels as standard with optional 18" wheels and performance tires. All G6 convertible models are equipped with 18" wheels and tires.
"Whether it's the coupé or convertible, these cars were designed to perform to the expectations of enthusiast drivers," said Bunnell. "They're great because they fit so many of us. Families living in the north can justify even the convertible — there's room and the top will keep out the elements."
| Models: | GT coupé | GTP coupé | GT hardtop convertible | GTP hardtop convertible |
| Body style / driveline: | 4-passenger, front-engine, fwd coupé | 4-passenger, front-engine, fwd convertible | ||
| Engines: | 3.5 L V-6 (GT) | 3.9 L HO V-6 (GTP) | 3.5 L V-6 (GT) | 3.9 L HO V-6 (GTP) |
| Horsepower (hp / kW @ rpm): | 200 / 149 @ 5800 | 240 / 179 @ 5900 | 200 / 149 @ 5800 | 240 / 179 @ 5900 |
| Torque (lb-ft / Nm @ rpm): | 220 / 298 @ 3800 | 245 / 339 @ 2800 | 220 / 298 @ 3800 | 245 / 339 @ 2800 |
| Projected fuel economy: | 21 / 29 | auto: 18 / 24
manual: 18 / 26 |
19 / 29 | 18 / 24 |
| Transmissions: | Hydra-Matic 4T45-E 4-speed auto with manual-shift mode | Hydra-Matic 4T65-E 4-speed auto with manual-shift mode (std);
FGP F40-6 6-speed manual (opt) |
Hydra-Matic 4T45-E 4-speed auto with manual-shift mode | Hydra-Matic 4T65-E 4-speed auto with manual-shift mode |
| Suspension (front): | MacPherson strut with aluminum L-shaped control arms, direct-acting stabilizer bar | |||
| Suspension (rear): | four-link independent with twin tube shocks, dual-rate mini-block coil springs | four-link independent with mono-tube shocks, dual-rate mini-block coil springs | ||
| Steering: | rack-and-pinion with electric power assist | rack-and-pinion with hydraulic power assist | ||
| Brakes: | power-assisted vented disc (front); power-assisted solid disc (rear); ABS standard | |||
| Wheels: | coupé: 17-in std, 18-in opt | 18-in std | ||
| Wheelbase (in / mm): | 112.3 / 2852 | |||
| Overall length (in / mm): | 189 / 4802 | |||
| Overall width (in / mm): | 70.6 / 1749 | |||
| Overall height (in / mm): | 57 / 1450 | |||
| Head room (in / mm): | front: 988 / 38.9
rear: 923 / 36.3 |
front: 976 / 38.4
rear: 917 / 36.1 |
||
| Leg room (in / mm): | front: 1073 / 42.2
rear: 910 / 35.8 |
front: 1073 / 42.2
rear: 869 / 34.2 |
||
| Shoulder room (in / mm): | front: 1376 / 54.2
rear: 1299 / 51.1 |
front: 1371 / 54.0
rear: 1137 / 44.8 |
||
| Hip room (in / mm): | front: 1337 / 52.6
rear: 1267 / 49.9 |
front: 1337 / 52.6
rear: 1163 / 45.8 |
||
| Cargo volume (cu-ft / L): | 14 / 397 | (top up): 5.8 / 61
(top down): 1.8 / 164 |
||