The Hyundai Grandeur III (XG), particularly the facelifted version introduced in 2003, marked a substantial advancement for Hyundai in terms of design, refinement, and technology. Positioned as Hyundai’s flagship sedan, the Grandeur aimed to compete with established Japanese and American luxury vehicles in both domestic and export markets. The 3.5i V6 Automatic variant, produced from 2003 to 2005, represented the top trim level of the XG range, offering a blend of performance and comfort. It was primarily marketed towards buyers seeking a spacious, well-equipped sedan with a powerful engine, though it didn’t achieve the same brand recognition as its competitors.
Technical Specifications
| Brand | Hyundai |
| Model | Grandeur/Azera |
| Generation | Grandeur III (XG, facelift 2003) |
| Type (Engine) | 3.5i V6 (197 Hp) Automatic |
| Start of production | 2003 |
| End of production | 2005 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel Type | Petrol (Gasoline) |
| Power | 197 Hp @ 5500 rpm |
| Power per litre | 56.3 Hp/l |
| Torque | 313 Nm @ 3500 rpm / 230.86 lb.-ft. @ 3500 rpm |
| Engine Model/Code | Sigma / G6CU |
| Engine displacement | 3497 cm3 / 213.4 cu. in. |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 93 mm / 3.66 in. |
| Piston Stroke | 85.8 mm / 3.38 in. |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 4.3 l / 4.54 US qt | 3.78 UK qt |
| Coolant | 11.2 l / 11.83 US qt | 9.85 UK qt |
| Trunk (boot) space – minimum | 410 l / 14.48 cu. ft. |
| Fuel tank capacity | 70 l / 18.49 US gal | 15.4 UK gal |
| Length | 4875 mm / 191.93 in. |
| Width | 1800 mm / 70.87 in. |
| Height | 1420 mm / 55.91 in. |
| Wheelbase | 2750 mm / 108.27 in. |
| Front track | 1540 mm / 60.63 in. |
| Rear (Back) track | 1530 mm / 60.24 in. |
| Ride height (ground clearance) | 160 mm / 6.3 in. |
| Minimum turning circle (turning diameter) | 12.6 m / 41.34 ft. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, automatic transmission |
| Front suspension | Double wishbone |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Tires size | 205/60 R16 96V |
| Wheel rims size | 16 |
Powertrain & Engine Architecture
The 3.5i Grandeur’s powertrain centered around the Hyundai Sigma engine, specifically the G6CU variant. This 3.5-liter, naturally aspirated V6 engine featured a 60-degree V-angle and employed a cast iron block paired with an aluminum cylinder head. The engine utilized multi-port fuel injection (MPI) and a double overhead camshaft (DOHC) valvetrain with four valves per cylinder. This configuration yielded 197 horsepower at 5,500 rpm and 230.86 lb-ft of torque at 3,500 rpm. The engine’s design prioritized smooth operation and refinement over outright performance. A 5-speed automatic transmission was paired with the engine, designed for comfortable and effortless cruising. While not a particularly advanced transmission for its time, it was known for its reliability and smooth shifts.
Driving Characteristics
The 3.5i Grandeur delivered a comfortable and composed driving experience. The automatic transmission, lacking manual shift control, provided smooth and predictable gear changes. Acceleration was adequate for most driving situations, with the engine offering a broad torque curve that facilitated relatively easy overtaking at highway speeds. However, the car wasn’t designed for sporty driving; the focus was on a relaxed and refined ride. Compared to the base 2.5L V6 models, the 3.5i offered a noticeable performance improvement. The added weight of the engine did slightly impact handling, making it less agile than its smaller-engined counterparts, but the independent rear suspension helped maintain reasonable composure in corners. The gear ratios were tuned for fuel efficiency and comfortable cruising rather than aggressive acceleration.
Equipment & Trim Levels
As the top-of-the-line Grandeur, the 3.5i Automatic came standard with a comprehensive list of features. These typically included leather upholstery, power-adjustable front seats, automatic climate control, a premium sound system, and alloy wheels. Optional extras often included a sunroof, upgraded audio systems, and woodgrain interior trim. Safety features such as ABS were standard. The interior design was generally conservative, aiming for a luxurious feel with a focus on space and comfort. The facelifted 2003 models received minor interior updates, including revised dashboard trim and improved materials.
Chassis & Braking
The Grandeur III utilized a front-wheel-drive platform with a double wishbone suspension setup at the front and an independent multi-link suspension at the rear. This suspension configuration aimed to provide a comfortable ride while maintaining reasonable handling characteristics. Braking was handled by ventilated disc brakes at the front and solid disc brakes at the rear. ABS was standard, enhancing braking performance in emergency situations. The steering system employed a rack-and-pinion setup, offering precise and responsive steering feel. The relatively generous wheelbase contributed to a stable and comfortable ride quality.
Market Reception & Comparison
The 3.5i Grandeur received generally positive reviews, with critics praising its spacious interior, comfortable ride, and generous equipment list. However, it often faced criticism for its somewhat bland styling and lack of brand prestige compared to established luxury brands. Compared to the 2.5L V6 models, the 3.5i offered a significant performance upgrade, but at the cost of slightly reduced fuel economy. The 3.5i also carried a substantial price premium over the lower trims. In terms of reliability, the G6CU engine proved reasonably durable, although some owners reported issues with the automatic transmission over the long term.
Legacy
The Hyundai Grandeur III 3.5i V6 Automatic, while not a groundbreaking vehicle, played a crucial role in establishing Hyundai as a credible competitor in the mid-size sedan segment. It demonstrated Hyundai’s ability to produce a well-equipped, comfortable, and reliable vehicle that could challenge established brands. Today, these cars are relatively affordable on the used car market, and well-maintained examples can still provide reliable transportation. The G6CU engine is generally considered a robust and durable unit, although preventative maintenance is essential to ensure long-term reliability. The 3.5i Grandeur represents a significant milestone in Hyundai’s history, showcasing the company’s growing ambition and engineering capabilities.
