The Genesis G90, initially launched as the Hyundai EQ900 in the South Korean market, represents Genesis’s flagship luxury sedan. The G90/EQ900L I 5.0 GDi V8 variant, produced from 2017 to 2018, was a key model in establishing the Genesis brand as a serious competitor in the premium large car segment. This iteration, equipped with a naturally aspirated 5.0-liter V8 engine and all-wheel drive, aimed to deliver a blend of powerful performance, sophisticated technology, and luxurious comfort. It served as the top-tier offering within the initial G90 lineup, positioned above the 3.3T models.
Technical Specifications
| Brand | Genesis |
| Model | G90/EQ900 |
| Generation | G90/EQ900L I |
| Type (Engine) | 5.0 GDi V8 (425 Hp) AWD Automatic |
| Start of production | 2017 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 4-5 |
| Doors | 4 |
| Fuel consumption (urban) | 16.7 l/100 km (14.1 US mpg, 16.9 UK mpg, 6 km/l) |
| Fuel consumption (extra urban) | 10.6 l/100 km (22.2 US mpg, 26.6 UK mpg, 9.4 km/l) |
| Fuel consumption (combined) | 13.9 l/100 km (16.9 US mpg, 20.3 UK mpg, 7.2 km/l) |
| CO2 emissions | 239 g/km |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 5.3 kg/Hp, 187.2 Hp/tonne |
| Weight-to-torque ratio | 4.4 kg/Nm, 229.1 Nm/tonne |
| Power | 425 Hp @ 6000 rpm |
| Power per litre | 84.4 Hp/l |
| Torque | 520 Nm @ 5000 rpm (383.53 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | Tau / G8BE |
| Engine displacement | 5038 cm3 (307.44 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Fuel injection system | Direct injection |
| Engine aspiration | BiTurbo, Intercooler |
| Engine oil capacity | 9.2 l (9.72 US qt | 8.09 UK qt) |
| Coolant capacity | 11.4 l (12.05 US qt | 10.03 UK qt) |
| Kerb Weight | 2270-2290 kg (5004.49 – 5048.59 lbs.) |
| Fuel tank capacity | 83 l (21.93 US gal | 18.26 UK gal) |
| Length | 5495 mm (216.34 in.) |
| Width | 1915 mm (75.39 in.) |
| Height | 1505 mm (59.25 in.) |
| Wheelbase | 3450 mm (135.83 in.) |
| Front track | 1640 mm (64.57 in.) |
| Rear track | 1639 mm (64.53 in.) |
| Front overhang | 860 mm (33.86 in.) |
| Rear overhang | 1185 mm (46.65 in.) |
| Drivetrain Architecture | All wheel drive (4×4) |
| Number of gears | 8 |
| Gearbox type | Automatic transmission |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
Powertrain & Engine Architecture
The heart of the G90/EQ900L I 5.0 GDi V8 is the Tau V8 engine, designated as the G8BE. This 5.0-liter (5038 cc) engine utilizes direct injection (GDi) technology to maximize fuel efficiency and power output. The engine produces 425 horsepower at 6000 rpm and 520 Nm (383.53 lb-ft) of torque at 5000 rpm. The engine features a dual continuously variable valve timing (CVVT) system, optimizing valve timing for improved performance across the rev range. The engine is longitudinally mounted in the front of the vehicle. The eight-speed automatic transmission, developed in-house by Hyundai/Genesis, is designed for smooth and responsive shifting. It features a wide gear ratio spread to balance acceleration and fuel economy. The all-wheel-drive system employs a multi-plate clutch to distribute torque between the front and rear axles, enhancing traction and stability in various driving conditions.
Driving Characteristics
The 5.0-liter V8 paired with the eight-speed automatic delivers a refined and powerful driving experience. Acceleration is brisk, with the G90 capable of reaching 60 mph in around 5.3 seconds. The automatic transmission provides seamless gear changes, contributing to a smooth and comfortable ride. Compared to the 3.3T turbocharged models, the V8 offers a more linear power delivery and a distinct exhaust note. While the 3.3T variants provided quicker initial acceleration due to turbocharger boost, the V8’s broader torque curve offered more consistent power throughout the rev range. The all-wheel-drive system provides enhanced grip and stability, particularly in inclement weather. However, the added weight of the V8 engine and AWD system does result in slightly higher fuel consumption compared to the rear-wheel-drive 3.3T models.
Equipment & Trim Levels
The G90/EQ900L I 5.0 GDi V8 typically came standard with a comprehensive suite of luxury features. These included leather upholstery, heated and ventilated front and rear seats, a premium sound system (often Lexicon), a large infotainment display with navigation, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane keeping assist, and automatic emergency braking. Optional extras included a rear-seat entertainment system, a power-adjustable steering wheel, and various interior trim options. The interior design emphasized spaciousness and comfort, with high-quality materials and meticulous attention to detail. The EQ900L version, primarily sold in Korea, offered extended wheelbase for even more rear passenger legroom.
Chassis & Braking
The G90/EQ900L I features a multi-link suspension system at all four corners, designed to provide a comfortable and controlled ride. The suspension is tuned to prioritize ride quality over sporty handling. The vehicle is equipped with ventilated disc brakes on all four wheels, providing ample stopping power. Anti-lock braking system (ABS) and electronic stability control (ESC) are standard features. The steering system is a power-assisted rack-and-pinion setup, offering precise and responsive steering feel. Stabilizer bars are fitted to both the front and rear axles to reduce body roll during cornering.
Market Reception & Comparison
The G90/EQ900L I 5.0 GDi V8 was generally well-received by automotive critics. Reviewers praised its powerful engine, luxurious interior, and comfortable ride. However, some noted that its styling was conservative compared to its European rivals. Fuel economy was a common criticism, as expected for a large V8-powered sedan. Compared to the 3.3T models, the V8 offered a more refined and sophisticated driving experience, but at a higher price point. The V8 was targeted towards buyers who prioritized smooth power delivery and a premium feel over outright performance. Reliability reports have been generally positive, with the Tau V8 engine proving to be a durable and dependable powerplant.
Legacy
The G90/EQ900L I 5.0 GDi V8 played a crucial role in establishing Genesis as a legitimate luxury brand. While the model was discontinued after a relatively short production run, it remains a desirable vehicle in the used car market. The Tau V8 engine has a reputation for long-term reliability, and well-maintained examples continue to offer a compelling combination of performance, luxury, and value. The G90’s success paved the way for subsequent Genesis models, solidifying the brand’s position as a competitor to established luxury automakers.
