2018-2021 Genesis G90 I (facelift ) 3.8 GDi V6 (315 Hp) AWD Automatic

The Genesis G90, initially known as the Hyundai EQ900 in South Korea, represents Genesis Motor’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 specifically on the 3.8 GDi V6 variant with all-wheel drive and an eight-speed automatic transmission, a key offering within the G90 lineup during the 2018-2021 model years. Positioned as a mid-range option, it bridged the gap between the base 3.3T V6 and the more powerful 5.0L V8 models, offering a balance of performance, luxury, and value.

Technical Specifications

Powertrain & Engine Architecture

The heart of this G90 variant is the Lambda II 3.8-liter naturally aspirated V6 engine, designated with the code G6DJ. This engine utilizes direct gasoline injection (GDi) technology, enhancing both power and fuel efficiency. The direct injection system precisely meters fuel directly into the combustion chamber, allowing for a higher compression ratio and more complete combustion. The engine features a dual overhead camshaft (DOHC) valvetrain with continuously variable valve timing (CVVT) on both intake and exhaust sides, optimizing engine performance across the rev range. The eight-speed automatic transmission, developed in-house by Hyundai/Genesis, provides smooth and responsive shifting. This transmission is designed to handle the engine’s torque output effectively and contribute to improved fuel economy. The all-wheel-drive system employs a multi-plate clutch to distribute power between the front and rear axles, enhancing traction and stability in various driving conditions.

Driving Characteristics

The 3.8L V6 AWD G90 delivers a comfortable and refined driving experience. With 315 horsepower and 292 lb-ft of torque, acceleration is brisk, though not as aggressive as the 5.0L V8. The eight-speed automatic transmission is well-tuned, providing seamless gear changes and contributing to a relaxed cruising experience. Compared to the manual transmission options available on some other G90 trims (though rare in the US market), the automatic prioritizes ease of use and comfort over outright performance. The all-wheel-drive system provides confident handling in inclement weather and enhances stability during spirited driving. The suspension is tuned for comfort, absorbing bumps and imperfections in the road effectively. While not a sports sedan, the G90 3.8 offers a composed and predictable driving experience.

Equipment & Trim Levels

The 2018-2021 G90 3.8 GDi AWD typically came well-equipped with standard features including leather upholstery, heated and ventilated front seats, a 12.3-inch infotainment display with navigation, a premium sound system (often Lexicon), 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. Trim levels often included base and Premium packages, with the Premium package adding features like upgraded leather, additional sound insulation, and enhanced interior trim.

Chassis & Braking

The G90 utilizes a fully independent suspension system, featuring multi-link setups at both the front and rear. This configuration contributes to a comfortable ride and precise handling. The chassis is engineered for rigidity, minimizing body roll and enhancing stability. Braking duties are handled by ventilated disc brakes on all four wheels, providing ample stopping power. The electronic stability control (ESC) system and anti-lock braking system (ABS) work in conjunction to maintain control during emergency braking situations. The G90 3.8 typically featured a slightly smaller brake rotor size compared to the V8 models, reflecting the lower weight and performance demands.

Market Reception & Comparison

Critics generally praised the G90 3.8 for its luxurious interior, comfortable ride, and comprehensive suite of features. The 3.8L engine was considered adequate for most drivers, offering a good balance of power and fuel economy. However, some reviewers noted that it lacked the outright performance of the 5.0L V8. Compared to its rivals – such as the BMW 7 Series, Mercedes-Benz S-Class, and Lexus LS – the G90 offered a compelling value proposition, providing similar levels of luxury and technology at a lower price point. Fuel economy figures were competitive within the luxury sedan segment, though not class-leading. Reliability reports have been generally positive, with owners reporting few major issues.

Legacy

The Genesis G90 3.8 GDi V6 AWD has established itself as a reliable and well-regarded luxury sedan in the used car market. The Lambda II engine is known for its durability, and the eight-speed automatic transmission has proven to be robust. While not as sought-after as the V8 models, the 3.8L variant offers a more affordable entry point into the G90 ownership experience. Its combination of luxury, technology, and reasonable running costs makes it an attractive option for buyers seeking a comfortable and refined full-size sedan. As Genesis continues to establish itself as a luxury brand, the first-generation G90, including the 3.8L variant, represents a significant step in its evolution.