The Hyundai Sonata VIII (DN8), particularly the facelifted model introduced in March 2023, represents a significant evolution in Hyundai’s mid-size sedan offering. The G2.0 GDi (195 Hp) HEV Automatic variant occupies a key position within the DN8 lineup, blending fuel efficiency with a respectable level of performance. This model is a Full Hybrid Electric Vehicle (FHEV), designed to appeal to buyers seeking reduced emissions and improved gas mileage without sacrificing the convenience of a traditional gasoline engine. It’s positioned as a mid-range offering, bridging the gap between the base model and higher-trim, more performance-oriented Sonatas.
Technical Specifications
| Brand | Hyundai |
| Model | Sonata |
| Generation | Sonata VIII (DN8, facelift 2023) |
| Type (Engine) | G2.0 GDi (195 Hp) HEV Automatic |
| Start of production | March, 2023 |
| Powertrain Architecture | FHEV (Full Hybrid Electric Vehicle) |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 5-5.9 l/100 km (47 – 39.9 US mpg) |
| Fuel consumption (extra urban) | 5.3-5.7 l/100 km (44.4 – 41.3 US mpg) |
| Fuel consumption (combined) | 5.1-5.8 l/100 km (46.1 – 40.6 US mpg) |
| CO2 emissions | 84-93 g/km |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.9 kg/Hp, 125.8 Hp/tonne |
| Weight-to-torque ratio | 8.2 kg/Nm, 121.3 Nm/tonne |
| Battery technology | Lithium-polymer (LiPo) |
| Electric motor power | 52 Hp |
| Electric motor Torque | 205 Nm (151.2 lb.-ft.) |
| Electric motor location | Between the combustion engine and the transmission |
| System power | 195 Hp @ 6000 rpm |
| Internal combustion engine power | 152 Hp @ 6000 rpm |
| Power per litre | 76 Hp/l |
| Torque | 188 Nm @ 5000 rpm (138.66 lb.-ft. @ 5000 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Smartstream |
| Engine displacement | 1999 cm3 (121.99 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Compression ratio | 14:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | D-CVVT |
| Kerb Weight | 1550-1585 kg (3417.17 – 3494.33 lbs.) |
| Trunk (boot) space | 480 l (16.95 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4910 mm (193.31 in.) |
| Width | 1860 mm (73.23 in.) |
| Height | 1445 mm (56.89 in.) |
| Wheelbase | 2840 mm (111.81 in.) |
| Front track | 1618-1633 mm (63.7 – 64.29 in.) |
| Rear track | 1625-1640 mm (63.98 – 64.57 in.) |
| Ride height (ground clearance) | 135 mm (5.31 in.) |
| Minimum turning circle | 10.9 m (35.76 ft.) |
| Drivetrain Architecture | Front wheel drive. FHEV. ICE and electric motor drive front wheels. |
| Number of gears | 6 |
| Gearbox type | Automatic transmission |
| Front suspension | Independent, McPherson with coil spring and anti-roll bar |
| 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 |
| Power steering | Electric Steering |
| Tires size | 205/65 R16; 215/55 R17; 235/45 R18 |
| Wheel rims size | 6.5J x 16; 7J x 17; 7.5J x 18 |
Powertrain & Engine Architecture
At the heart of the Sonata G2.0 GDi HEV is Hyundai’s Smartstream 2.0-liter inline-four cylinder gasoline engine. This engine, designated as part of the Smartstream family, utilizes direct injection technology to optimize fuel delivery and combustion efficiency. The engine produces 152 horsepower at 6000 rpm and 138.66 lb-ft of torque at 5000 rpm. It features a relatively high compression ratio of 14:1, contributing to its thermal efficiency. Hyundai’s Dual Continuous Variable Valve Timing (D-CVVT) system manages valve timing for both intake and exhaust valves, further enhancing performance and fuel economy. The electric motor, positioned between the engine and the transmission, contributes an additional 52 horsepower and 151.2 lb-ft of torque. The combined system output is 195 horsepower. The powertrain is paired with a 6-speed automatic transmission, specifically tuned to work seamlessly with the hybrid system. The transmission’s programming prioritizes fuel efficiency, with smooth shifts and a focus on keeping the engine operating within its most efficient range.
Driving Characteristics
The 195-horsepower hybrid powertrain delivers adequate performance for everyday driving. Acceleration is smooth and linear, though not particularly brisk. The electric motor provides instant torque, which helps to fill in gaps in the engine’s power delivery, especially at lower speeds. The 6-speed automatic transmission generally shifts smoothly, but can sometimes feel hesitant during quick acceleration maneuvers. Compared to higher-output Sonata trims, such as those equipped with the turbocharged 2.5-liter engine, the G2.0 GDi HEV feels less powerful. However, it offers a more refined and fuel-efficient driving experience. The hybrid system allows for short periods of all-electric driving at lower speeds, further enhancing fuel economy and reducing emissions. The steering is light and precise, making the Sonata easy to maneuver in city traffic.
Equipment & Trim Levels
The Sonata G2.0 GDi HEV Automatic typically comes well-equipped with standard features. These generally include automatic climate control, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a rearview camera, and a suite of advanced driver-assistance systems (ADAS) such as forward collision avoidance assist, lane keeping assist, and adaptive cruise control. Interior upholstery is typically cloth, with available upgrades to leather in higher sub-trims. Optional extras often include a panoramic sunroof, premium audio system, heated and ventilated front seats, and a wireless charging pad. The specific features available vary depending on the package selected.
Chassis & Braking
The Sonata G2.0 GDi HEV utilizes an independent suspension setup, with a McPherson strut design at the front and a multi-link suspension at the rear. This configuration provides a comfortable ride quality, absorbing bumps and imperfections in the road surface effectively. Stabilizer bars are included at both ends to reduce body roll during cornering. The braking system consists of ventilated discs at the front and solid discs at the rear. Anti-lock braking system (ABS) is standard, providing enhanced stopping power and control. The Sonata’s chassis is designed to balance ride comfort with handling stability, making it a pleasant vehicle to drive on a variety of road surfaces.
Market Reception & Comparison
The Hyundai Sonata G2.0 GDi HEV Automatic has been generally well-received by automotive critics. It’s praised for its fuel efficiency, comfortable ride, and generous list of standard features. However, some reviewers have noted that its acceleration is not as quick as some of its competitors. Compared to other hybrid sedans in its class, such as the Toyota Camry Hybrid and Honda Accord Hybrid, the Sonata offers a competitive combination of price, features, and fuel economy. The Sonata’s styling, particularly after the 2023 facelift, has also been a point of praise, setting it apart from more conservative designs in the segment.
Legacy
The Smartstream 2.0-liter engine and 6-speed automatic transmission combination, when paired with the hybrid system, has proven to be a reliable powertrain. While long-term durability data is still emerging for the facelifted 2023 models, earlier iterations of this powertrain have demonstrated good reliability. On the used car market, the Sonata G2.0 GDi HEV is expected to hold its value reasonably well, due to its fuel efficiency and reputation for reliability. The increasing demand for fuel-efficient vehicles is likely to further enhance its appeal in the years to come. The DN8 Sonata, and this variant in particular, represents Hyundai’s continued commitment to offering technologically advanced and fuel-efficient vehicles to the mass market.
