The MG4 EV I 77 kWh Extended Range, launched in July 2023, represents MG’s entry into the competitive extended-range electric hatchback segment. Positioned as a premium trim within the MG4 EV lineup, it offers a significant increase in range and performance compared to the standard range models. This variant is a key component of MG’s strategy to expand its presence in the European and increasingly, the North American electric vehicle market, offering a compelling combination of affordability, practicality, and technology. The MG4 EV is built on MG’s modular all-electric platform, designed to accommodate various battery sizes and powertrain configurations.
Technical Specifications
| Brand | MG |
| Model | MG4 |
| Generation | MG4 EV I |
| Type (Engine) | 77 kWh (245 Hp) Extended Range |
| Start of production | July, 2023 |
| Powertrain Architecture | BEV (Electric Vehicle) |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Electricity |
| Acceleration 0 – 100 km/h | 6.5 sec |
| Acceleration 0 – 62 mph | 6.5 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 180 km/h (111.85 mph) |
| Weight-to-power ratio | 7.1 kg/Hp, 139.9 Hp/tonne |
| Weight-to-torque ratio | 5 kg/Nm, 199.9 Nm/tonne |
| Gross battery capacity | 77 kWh |
| Net (usable) battery capacity | 74.4 kWh |
| Battery technology | Lithium nickel manganese cobalt oxides (Li-NMC) |
| Battery location | Below the floor |
| All-electric range (WLTP) | 530 km (329.33 mi) |
| Average Energy consumption (WLTP) | 16.1 kWh/100 km (25.91 kWh/100 mi) |
| MPGe | 130 |
| km/kWh | 6.2 |
| mi/kWh | 3.9 |
| Electric motor power | 245 Hp |
| Electric motor Torque | 350 Nm (258.15 lb.-ft.) |
| Electric motor location | Rear axle, Transverse |
| Electric motor type | Synchronous |
| System power | 245 Hp |
| System torque | 350 Nm (258.15 lb.-ft.) |
| Kerb Weight | 1751 kg (3860.29 lbs.) |
| Max. weight | 2209 kg (4870.01 lbs.) |
| Max load | 458 kg (1009.72 lbs.) |
| Trunk (boot) space – minimum | 363 l (12.82 cu. ft.) |
| Trunk (boot) space – maximum | 1165 l (41.14 cu. ft.) |
| Max. roof load | 50 kg (110.23 lbs.) |
| Permitted trailer load with brakes (12%) | 500 kg (1102.31 lbs.) |
| Permitted trailer load without brakes | 500 kg (1102.31 lbs.) |
| Permitted towbar download | 50 kg (110.23 lbs.) |
| Length | 4287 mm (168.78 in.) |
| Width | 1836 mm (72.28 in.) |
| Width including mirrors | 2060 mm (81.1 in.) |
| Height | 1516 mm (59.69 in.) |
| Wheelbase | 2705 mm (106.5 in.) |
| Front track | 1553 mm (61.14 in.) |
| Rear (Back) track | 1559 mm (61.38 in.) |
| Minimum turning circle (turning diameter) | 10.6 m (34.78 ft.) |
| Drivetrain Architecture | One electric motor drives the rear wheels. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 1 gears, automatic transmission |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Wheel rims size | 18 |
INTRODUCTION
The MG4 EV I 77 kWh Extended Range is a five-door hatchback designed to provide a longer driving range and enhanced performance compared to the standard range MG4 EV models. Introduced in July 2023, it builds upon the foundation of the MG4 platform (based on the SAIC Motor’s MSP platform), offering a compelling alternative to established electric vehicles in the compact segment. The “I” designation signifies the higher trim level, featuring more standard equipment and the larger 77 kWh battery pack. This model is particularly significant as it showcases MG’s commitment to delivering affordable electric mobility with a focus on practicality and modern features.
Powertrain & Engine Architecture
At the heart of the MG4 EV I 77 kWh Extended Range is a permanent magnet synchronous motor located on the rear axle. This motor produces 245 horsepower and 350 Nm (258 lb-ft) of torque. The powertrain is entirely electric, utilizing a 77 kWh lithium nickel manganese cobalt oxide (Li-NMC) battery pack positioned under the vehicle floor. This battery provides a WLTP-certified range of 530 km (329 miles). The vehicle employs a single-speed automatic transmission, typical of electric vehicles, delivering seamless acceleration. The battery management system (BMS) is crucial for optimizing battery performance, longevity, and safety, monitoring cell voltages, temperatures, and current flow. The MG4 supports DC fast charging, allowing for a significant range boost in a relatively short time.
Driving Characteristics
The rear-wheel-drive configuration of the MG4 EV I 77 kWh Extended Range contributes to a balanced driving experience. Acceleration from 0 to 60 mph is achieved in approximately 6.1 seconds. The single-speed transmission provides instant torque delivery, resulting in brisk acceleration. Compared to the standard range MG4 models, the Extended Range variant offers noticeably improved performance, particularly during highway driving and overtaking maneuvers. The weight distribution, influenced by the battery pack’s location, enhances stability and handling. While not a sports car, the MG4 EV I provides a responsive and engaging driving experience for its class. The regenerative braking system allows for adjustable levels of deceleration, maximizing energy recovery and extending range.
Equipment & Trim Levels
The MG4 EV I 77 kWh Extended Range trim comes standard with a comprehensive suite of features. These include a 10.1-inch touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, a digital instrument cluster, and a panoramic sunroof. Standard safety features encompass MG Pilot, an advanced driver-assistance system (ADAS) suite, including adaptive cruise control, lane-keeping assist, and automatic emergency braking. Interior upholstery is typically a combination of leatherette and fabric. Optional extras may include heated front seats, a 360-degree camera system, and premium audio upgrades. The overall interior design prioritizes functionality and modern aesthetics.
Chassis & Braking
The MG4 EV I utilizes a MacPherson strut front suspension and a five-link rear suspension, optimized for comfort and handling. The suspension tuning is geared towards providing a balanced ride quality, absorbing road imperfections while maintaining stability. The braking system features disc brakes on all four wheels, coupled with an anti-lock braking system (ABS) and electronic brakeforce distribution (EBD). Regenerative braking further enhances stopping power and energy efficiency. The vehicle’s relatively low center of gravity, due to the battery pack’s placement, contributes to reduced body roll during cornering.
Market Reception & Comparison
The MG4 EV I 77 kWh Extended Range has been well-received by automotive critics, praised for its affordability, range, and practicality. Compared to other electric hatchbacks in its price range, such as the Volkswagen ID.3 and the Renault Megane E-Tech Electric, the MG4 offers a competitive range and feature set at a lower price point. Some reviews have noted that the interior materials are not as premium as those found in some competitors, but this is often considered acceptable given the vehicle’s price. Fuel economy, expressed as energy consumption, is rated at 16.1 kWh/100 km (25.91 kWh/100 miles), translating to approximately 130 MPGe. Reliability data is still emerging, but early reports suggest a generally positive ownership experience.
Legacy
The MG4 EV I 77 kWh Extended Range is poised to become a significant player in the electric vehicle market. Its combination of affordability, range, and practicality makes it an attractive option for consumers seeking a transition to electric mobility. The long-term reliability of the powertrain remains to be fully assessed, but MG’s commitment to providing a comprehensive warranty offers reassurance to potential buyers. As the electric vehicle market continues to evolve, the MG4 EV I is likely to be remembered as a pivotal model that helped democratize access to electric vehicles, offering a compelling alternative to more expensive competitors.


