The Pontiac Grand Prix VI, produced from 1996 to 2001, represented the sixth generation of Pontiac’s popular mid-size sedan. This generation, designated chassis code ‘W’, saw a significant redesign focusing on a more aerodynamic and contemporary aesthetic. Within the Grand Prix VI lineup, the 3.1 i V6 SE (162 Hp) variant occupied a middle ground, offering a balance between affordability and performance. It served as a step up from the base models, providing a more powerful engine and a slightly more refined interior, while remaining below the higher-performance trims like the GTP. This model was primarily aimed at family buyers seeking a comfortable and reliable daily driver with a touch of sporty styling.
Technical Specifications
| Brand | Pontiac |
| Model | Grand Prix |
| Generation | Grand Prix VI (W) |
| Type (Engine) | 3.1 i V6 SE (162 Hp) |
| Start of production | 1996 |
| End of production | 2001 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.8 l/100 km (19.9 US mpg) |
| Fuel consumption (extra urban) | 8.1 l/100 km (29 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 195 km/h (121.17 mph) |
| Weight-to-power ratio | 9.6 kg/Hp |
| Weight-to-torque ratio | 6.2 kg/Nm |
| Power | 162 Hp @ 5200 rpm |
| Power per litre | 51.7 Hp/l |
| Torque | 251 Nm @ 4000 rpm (185.13 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | L82 |
| Engine displacement | 3135 cm3 (191.31 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 89 mm (3.5 in.) |
| Piston Stroke | 84 mm (3.31 in.) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated |
| Engine oil capacity | 4.3 l (4.54 US qt | 3.78 UK qt) |
| Coolant capacity | 10.42 l (11.01 US qt | 9.17 UK qt) |
| Kerb Weight | 1550 kg (3417.17 lbs.) |
| Trunk (boot) space – maximum | 455 l (16.07 cu. ft.) |
| Fuel tank capacity | 68 l (17.96 US gal | 14.96 UK gal) |
| Length | 4990 mm (196.46 in.) |
| Width | 1845 mm (72.64 in.) |
| Height | 1390 mm (54.72 in.) |
| Wheelbase | 2805 mm (110.43 in.) |
| Front track | 1565 mm (61.61 in.) |
| Rear track | 1550 mm (61.02 in.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 4 |
| Gearbox type | Automatic transmission |
| Front suspension | Spring Strut |
| Rear suspension | Double wishbone |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic |
| Tires size | 205/70 R15 |
Powertrain & Engine Architecture
The heart of the Grand Prix 3.1 i V6 SE was the L82 3.1-liter (191 cubic inch) V6 engine. This engine was a member of General Motors’ LA series of V6 engines, known for its durability and relatively simple design. The L82 featured a 90-degree V-angle, two valves per cylinder, and a multi-port fuel injection system. This configuration provided a good balance of power and fuel efficiency for its time. The engine produced 162 horsepower at 5200 rpm and 185 lb-ft of torque at 4000 rpm. The engine’s transverse mounting and front-wheel-drive configuration were typical for American sedans of the era. Paired with the L82 was a 4-speed automatic transmission, a 4T60-E unit, which was a common and generally reliable transmission used in many GM vehicles. This transmission was electronically controlled, offering smooth shifts and adaptive shift patterns.
Driving Characteristics
The 162-horsepower engine and 4-speed automatic transmission delivered adequate, but not exhilarating, performance. Acceleration was reasonable for everyday driving, with a 0-60 mph time estimated around 9-10 seconds. The automatic transmission was tuned for comfort and fuel economy, resulting in relatively relaxed gear changes. Compared to the manual transmission versions of the Grand Prix, the automatic offered less driver engagement but greater convenience. The automatic also felt noticeably slower than the higher-output GTP models, which featured a supercharged 3.8-liter V6. The gear ratios were optimized for cruising, making it a comfortable highway car, but it lacked the responsiveness needed for spirited driving. The front-wheel-drive setup provided predictable handling, but it wasn’t particularly sporty.
Equipment & Trim Levels
The Grand Prix 3.1 i V6 SE trim included a number of standard features designed to enhance comfort and convenience. These typically included air conditioning, power windows and locks, a tilt steering wheel, and an AM/FM stereo with cassette player. Upholstery was usually cloth, with options for upgraded velour or leather available. Optional extras included a sunroof, upgraded sound system, alloy wheels, and cruise control. The SE trim level offered a step up in interior appointments compared to the base models, with more refined trim and detailing.
Chassis & Braking
The Grand Prix VI utilized a front-wheel-drive platform with independent front suspension featuring spring struts and a double wishbone rear suspension. This setup provided a comfortable ride, although it wasn’t particularly sporty. The SE trim typically came equipped with ventilated disc brakes on the front wheels and solid discs on the rear. Anti-lock brakes (ABS) were standard, enhancing safety. The steering was rack-and-pinion with hydraulic power assist, providing light and easy steering feel. The standard tire size was 205/70R15, offering a good balance of ride comfort and handling.
Market Reception & Comparison
The Grand Prix 3.1 i V6 SE was generally well-received by critics as a practical and affordable mid-size sedan. It was praised for its comfortable ride, spacious interior, and reliable powertrain. However, it was often criticized for its somewhat bland styling and lack of sporty handling. Compared to other trims in the Grand Prix lineup, the 3.1 i V6 SE offered a good value proposition for buyers who didn’t need the extra performance of the GTP model. Fuel economy was respectable for its class, averaging around 19 mpg city and 29 mpg highway. Reliability was generally good, although some owners reported minor issues with the automatic transmission and cooling system.
Legacy
The Pontiac Grand Prix VI 3.1 i V6 SE remains a relatively common sight on used car lots today. The L82 engine and 4T60-E transmission are known for their durability, and parts are readily available. While not a particularly collectible model, it represents a solid and dependable American sedan from the late 1990s. The 3.1L engine, while not known for its high performance, is considered relatively easy to maintain and repair. These Grand Prix models are often sought after by budget-conscious buyers looking for a reliable and affordable transportation option. The car’s enduring presence in the used car market is a testament to its overall build quality and practicality.
