2018-2021 Genesis G90 I (facelift ) 3.3 T-GDi V6 (370 Hp) Automatic

The Genesis G90, initially known as the Hyundai EQ900 in its domestic South Korean market, represents Genesis’s flagship luxury sedan. The first generation (G90 I) was launched in 2016 and received a significant facelift in 2018, continuing in production through December 2021. This article focuses on the 2018-2021 facelifted G90 equipped with the 3.3-liter twin-turbocharged V6 engine (designated 3.3 T-GDi) paired with an eight-speed automatic transmission. This configuration positioned itself as the mid-range offering in the G90 lineup, slotting between the base 3.8-liter naturally aspirated V6 and the top-tier 5.0-liter naturally aspirated V8.

Technical Specifications

Brand Genesis
Model G90/EQ900
Generation G90 I (facelift 2018)
Type (Engine) 3.3 T-GDi V6 (370 Hp) Automatic
Start of production 2018
End of production December, 2021
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 4
Doors 4
Fuel consumption (urban) 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l)
Fuel consumption (extra urban) 9.3 l/100 km (25.3 US mpg, 30.4 UK mpg, 10.8 km/l)
Fuel consumption (combined) 11.4 l/100 km (20.6 US mpg, 24.8 UK mpg, 8.8 km/l)
CO2 emissions 196 g/km
Fuel Type Petrol (Gasoline)
Power 370 Hp @ 6000 rpm
Power per litre 110.7 Hp/l
Torque 510 Nm @ 1300-4500 rpm (376.16 lb.-ft. @ 1300-4500 rpm)
Engine layout Front, Longitudinal
Engine Model/Code Lambda II
Engine displacement 3342 cm3 (203.94 cu. in.)
Number of cylinders 6
Engine configuration V-engine
Fuel injection system Direct injection
Engine aspiration Turbocharger, Intercooler
Engine oil capacity 6.9 l (7.29 US qt | 6.07 UK qt)
Coolant capacity 9.8 l (10.36 US qt | 8.62 UK qt)
Max. weight 2065 kg (4552.55 lbs.)
Fuel tank capacity 83 l (21.93 US gal | 18.26 UK gal)
Length 5205 mm (204.92 in.)
Width 1915 mm (75.39 in.)
Height 1495 mm (58.86 in.)
Wheelbase 3160 mm (124.41 in.)
Front track 1630 mm (64.17 in.)
Rear track 1659 mm (65.31 in.)
Drivetrain Architecture Rear wheel drive
Number of gears 8
Gearbox type Automatic transmission
Front brakes Ventilated discs
Rear brakes Ventilated discs

Powertrain & Engine Architecture

The heart of this G90 variant is the Lambda II 3.3-liter twin-turbocharged V6 engine. This engine, part of Hyundai Motor Group’s Lambda family, utilizes direct injection and a twin-scroll turbocharger setup to deliver both power and efficiency. The twin-scroll design minimizes turbo lag, providing a more responsive driving experience. The engine produces 370 horsepower at 6000 rpm and a substantial 510 Nm (376 lb-ft) of torque available from a low 1300 rpm all the way to 4500 rpm. This broad torque curve contributes to effortless acceleration. The engine is longitudinally mounted in the front of the vehicle. The eight-speed automatic transmission, developed in-house by Hyundai, is designed for smooth and quick shifts. It features a wide gear ratio spread, optimizing both fuel economy and performance. While not offering the outright speed of the 5.0L V8, the 3.3T-GDi provides a compelling balance of power and refinement.

Driving Characteristics

The 3.3 T-GDi G90 delivers a comfortable and composed driving experience. The abundance of low-end torque from the twin-turbo V6 makes for effortless cruising and confident overtaking maneuvers. The eight-speed automatic transmission generally shifts smoothly and intelligently, although some reviewers noted occasional hesitancy during downshifts. Compared to the naturally aspirated 3.8L V6, the 3.3T-GDi offers significantly more power and a more engaging driving experience. However, it doesn’t quite match the raw power and sound of the 5.0L V8. The rear-wheel-drive configuration contributes to a balanced feel, although it doesn’t offer the all-weather capability of an all-wheel-drive system (which wasn’t available on this generation G90). The suspension is tuned for comfort, absorbing bumps and imperfections in the road with ease.

Equipment & Trim Levels

The 2018-2021 facelifted G90 3.3 T-GDi came well-equipped as standard. Typical features included leather upholstery, heated and ventilated front seats, a large infotainment screen with navigation, a premium sound system (often Lexicon branded), 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, massaging seats, and a power-adjustable steering column. Interior color options typically included various shades of black, beige, and brown. The dashboard layout was characterized by a clean and elegant design, with high-quality materials throughout the cabin.

Chassis & Braking

The G90 utilizes a multi-link suspension system both front and rear, designed to provide a comfortable ride and stable handling. The suspension components are specifically tuned to accommodate the weight and power of the 3.3T-GDi engine. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The G90 also incorporates ABS (Anti-lock Braking System), Electronic Stability Control (ESC), and Traction Control System (TCS) as standard safety features. Wheel sizes typically ranged from 18 to 19 inches, depending on the trim level and optional packages.

Market Reception & Comparison

The Genesis G90, and specifically the 3.3 T-GDi variant, was generally well-received by automotive critics. It was praised for its luxurious interior, comfortable ride, and strong performance. However, some reviewers noted that it lacked the brand recognition and prestige of established luxury brands like Mercedes-Benz or BMW. Fuel economy was considered average for its class, with combined figures around 20.6 US mpg. Compared to the 3.8L V6, the 3.3T-GDi offered a significant performance upgrade, justifying its higher price tag. The 5.0L V8, while more powerful, came at a substantial premium and offered diminishing returns in terms of real-world driving enjoyment for many buyers. Reliability reports have been generally positive, with few major issues reported for this powertrain.

Legacy

The Genesis G90 3.3 T-GDi represents a significant step forward for the Genesis brand, demonstrating its ability to compete with established luxury automakers. The Lambda II engine proved to be a reliable and capable powerplant, and the eight-speed automatic transmission provided smooth and efficient shifting. On the used car market, these G90s offer a compelling value proposition, providing a luxurious and well-equipped experience at a fraction of the cost of comparable European rivals. While the second-generation G90 has since been released, the first generation, particularly the facelifted 3.3 T-GDi model, remains a desirable and well-regarded luxury sedan.

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