The MG HS I (facelift 2020) 1.5 T-GDI Plug-in Hybrid Automatic represents a significant step in MG Motor’s ambition to offer technologically advanced and efficient vehicles in the global market. Introduced in 2020 and continuing production through August 2024, this variant of the HS compact SUV combined a turbocharged gasoline engine with an electric motor and battery pack, offering both all-electric driving capability and extended range through its plug-in hybrid architecture. Positioned as a mid-to-upper trim level within the HS range, it catered to buyers seeking a balance of performance, fuel economy, and environmental consciousness. The HS itself is based on the SAIC-developed platform, sharing underpinnings with other models within the broader SAIC portfolio.
Technical Specifications
| Brand | MG |
| Model | HS |
| Generation | HS I (facelift 2020) |
| Type (Engine) | 1.5 T-GDI (258 Hp) Plug-in Hybrid Automatic |
| Start of production | 2020 |
| End of production | August, 2024 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Combined fuel consumption (WLTP) | 1.8 l/100 km (130.7 US mpg, 156.9 UK mpg, 55.6 km/l) |
| CO2 emissions (WLTP) | 43 g/km |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 60 mph | 6.9 sec |
| Maximum speed | 190 km/h (118.06 mph) |
| Weight-to-power ratio | 6.7 kg/Hp, 148.5 Hp/tonne |
| Weight-to-torque ratio | 4.7 kg/Nm, 213 Nm/tonne |
| Gross battery capacity | 16.6 kWh |
| Net (usable) battery capacity | 14.9 kWh |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery location | Inside the trunk |
| All-electric range (WLTP) | 32 km (19.88 mi) |
| Electric motor power | 122 Hp @ 3700 rpm (169.64 lb.-ft. @ 500-3700 rpm) |
| Electric motor Torque | 230 Nm @ 500-3700 rpm |
| Electric motor location | Front, Transverse |
| System power | 258 Hp |
| System torque | 370 Nm (272.9 lb.-ft.) |
| Power | 162 Hp @ 5500 rpm (108.7 Hp/l) |
| Torque | 250 Nm @ 1700-4300 rpm (184.39 lb.-ft. @ 1700-4300 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | 15E4E |
| Engine displacement | 1490 cm3 (90.93 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 74 mm (2.91 in.) |
| Piston Stroke | 86.6 mm (3.41 in.) |
| Compression ratio | 11.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Kerb Weight | 1737-1775 kg (3829.43 – 3913.21 lbs.) |
| Max. weight | 2196 kg (4841.35 lbs.) |
| Max load | 421-459 kg (928.15 – 1011.92 lbs.) |
| Trunk (boot) space – minimum | 448 l (15.82 cu. ft.) |
| Trunk (boot) space – maximum | 1375 l (48.56 cu. ft.) |
| Fuel tank capacity | 37 l (9.77 US gal | 8.14 UK gal) |
| Length | 4610 mm (181.5 in.) |
| Width | 1876 mm (73.86 in.) |
| Width including mirrors | 2078 mm (81.81 in.) |
| Height | 1685 mm (66.34 in.) |
| Wheelbase | 2720 mm (107.09 in.) |
| Front track | 1573 mm (61.93 in.) |
| Rear (Back) track | 1584 mm (62.36 in.) |
| Drivetrain Architecture | Front wheel drive. PHEV. ICE and electric motor drive front wheels. |
| Number of gears and type of gearbox | 10 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| 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 | 235/50 R18 |
| Wheel rims size | 18 |
INTRODUCTION
The MG HS I (facelift 2020) 1.5 T-GDI Plug-in Hybrid Automatic is a compact SUV produced by MG Motor, a British automotive brand now owned by the Chinese company SAIC Motor. Introduced as part of a mid-life refresh for the HS model, this variant combined a 1.5-liter turbocharged gasoline engine with an electric motor and a 16.6 kWh battery pack. This plug-in hybrid powertrain allowed for a limited all-electric range of approximately 32 kilometers (19.88 miles) under WLTP testing, making it suitable for short commutes and urban driving. The HS, in general, was designed to appeal to a broad audience seeking a stylish, well-equipped, and affordable SUV, and the plug-in hybrid version aimed to attract environmentally conscious buyers.
Powertrain & Engine Architecture
At the heart of the HS I 1.5 T-GDI PHEV lies the 15E4E engine, a 1.5-liter inline-four cylinder gasoline engine equipped with a turbocharger and direct fuel injection. This engine produces 162 horsepower at 5500 rpm and 250 Nm (184.39 lb-ft) of torque between 1700 and 4300 rpm. The engine utilizes a DOHC (Double Overhead Camshaft) valvetrain and a compression ratio of 11.5:1. Coupled with this is a 122 hp electric motor, delivering 230 Nm (169.64 lb-ft) of torque. The combined system output is a substantial 258 horsepower and 370 Nm (272.9 lb-ft) of torque. Power is delivered to the front wheels via a sophisticated 10-speed automatic transmission. The battery pack, a lithium-ion unit with a gross capacity of 16.6 kWh and a usable capacity of 14.9 kWh, is located under the floor of the trunk, slightly reducing cargo space. The vehicle supports charging via a standard charging port, allowing for convenient replenishment of the battery.
Driving Characteristics
The 1.5 T-GDI Plug-in Hybrid Automatic HS offers a surprisingly refined driving experience. In all-electric mode, the vehicle operates silently and smoothly, providing instant torque from the electric motor. This makes it ideal for city driving. When the battery is depleted or when more power is demanded, the gasoline engine seamlessly kicks in, providing a combined output that delivers brisk acceleration – 0-60 mph in approximately 6.9 seconds. The 10-speed automatic transmission contributes to smooth gear changes and efficient power delivery. Compared to lower-powered HS variants, the plug-in hybrid offers significantly more performance. While not as sporty as some competitors, the HS I provides a comfortable and capable ride, balancing efficiency with adequate power.
Equipment & Trim Levels
The HS I 1.5 T-GDI Plug-in Hybrid Automatic typically came well-equipped, reflecting its position as a mid-to-upper trim level. Standard features often included leather upholstery, a panoramic sunroof, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a digital instrument cluster, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane departure warning, and automatic emergency braking. Optional extras could include premium audio systems, heated and ventilated front seats, and upgraded interior trim materials.
Chassis & Braking
The HS I utilizes an independent McPherson strut suspension at the front and an independent multi-link suspension at the rear, providing a comfortable and controlled ride. The chassis is tuned to balance handling with ride comfort, making it suitable for a variety of driving conditions. Braking duties are handled by ventilated discs at the front and solid discs at the rear, equipped with ABS (Anti-lock Braking System) and electronic brake-force distribution. The electric steering system provides light and precise steering feel.
Market Reception & Comparison
The MG HS I 1.5 T-GDI Plug-in Hybrid Automatic was generally well-received by automotive critics, who praised its value for money, spacious interior, and efficient powertrain. Its fuel economy of 1.8 l/100 km (130.7 US mpg) and low CO2 emissions of 43 g/km were particularly noteworthy. Compared to other HS variants, the plug-in hybrid offered superior performance and fuel efficiency, but at a higher price point. It competed with other plug-in hybrid SUVs in the compact segment, such as the Toyota RAV4 Prime and the Mitsubishi Outlander PHEV, offering a more affordable alternative.
Legacy
The MG HS I 1.5 T-GDI Plug-in Hybrid Automatic represents a pivotal moment for MG Motor, demonstrating its commitment to electrification and its ability to produce technologically advanced vehicles. While long-term reliability data is still emerging, the powertrain components have generally proven to be robust. On the used car market, these models are becoming increasingly sought after by buyers looking for an affordable and efficient plug-in hybrid SUV. The HS I helped establish MG as a credible player in the rapidly growing electric vehicle market, paving the way for future electric and hybrid models.





