The Trumpchi M8 I (facelift 2020) 390T, equipped with an Aisin 8-speed automatic transmission, represents a significant iteration of the GAC Motor MPV. Introduced in September 2020 and continuing through October 2022, this variant aimed to provide a balance of performance, comfort, and technology within the M8 lineup. Positioned as a mid-to-upper range trim, the 390T offered a more powerful engine option compared to lower-spec models, while remaining more accessible than potential future high-performance or luxury-focused versions. The M8, in general, was designed to cater to the growing demand for spacious, comfortable, and feature-rich MPVs in the Chinese automotive market, a segment where family-oriented vehicles are highly valued.
Technical Specifications
| Brand | Trumpchi |
| Model | GM8/M8 |
| Generation | M8 I (facelift 2020) |
| Type (Engine) | 390T (252 Hp) Aisin |
| Start of production | September, 2020 |
| End of production | October, 2022 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | MPV |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (economy) – combined (WLTC) | 8.85 l/100 km (26.6 US mpg, 31.9 UK mpg, 11.3 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Emission standard | China VI |
| Weight-to-power ratio | 8 kg/Hp, 124.8 Hp/tonne |
| Weight-to-torque ratio | 5.2 kg/Nm, 193.1 Nm/tonne |
| Power | 252 Hp @ 5250 rpm |
| Power per litre | 126.6 Hp/l |
| Torque | 390 Nm @ 1750-4000 rpm (287.65 lb.-ft. @ 1750-4000 rpm) |
| Engine layout | Front, Transverse |
| Engine displacement | 1991 cm3 (121.5 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DCVVT |
| Engine systems | Start & Stop System |
| Kerb Weight | 2020 kg (4453.34 lbs.) |
| Fuel tank capacity | 65 l (17.17 US gal | 14.3 UK gal) |
| Length | 5089 mm (200.35 in.) |
| Width | 1884 mm (74.17 in.) |
| Height | 1822 mm (71.73 in.) |
| Wheelbase | 3000 mm (118.11 in.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 8 gears, automatic transmission Aisin |
| 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 | 225/60 R17; 225/55 R18 |
| Wheel rims size | 17; 18 |
Powertrain & Engine Architecture
The heart of the M8 I 390T is the 1.991-liter (121.5 cubic inch) turbocharged inline-four cylinder engine, designated as the 390T. This engine utilizes direct fuel injection and a turbocharger with an intercooler to boost power output to 252 horsepower at 5250 rpm and 390 Nm (287.65 lb-ft) of torque between 1750 and 4000 rpm. The engine also incorporates Dual Continuous Variable Valve Timing (DCVVT) technology, optimizing valve timing for improved efficiency and performance across the rev range. A key component of this variant is the Aisin 8-speed automatic transmission. Aisin, a renowned transmission manufacturer, is known for its smooth shifting and durability. This transmission was chosen to handle the engine’s torque output and provide a comfortable driving experience. The Start & Stop system further contributes to fuel efficiency by automatically shutting off the engine when the vehicle is stationary.
Driving Characteristics
The 390T variant of the Trumpchi M8 I delivers a noticeably more responsive driving experience compared to lower-powered versions. The Aisin 8-speed automatic transmission plays a crucial role in this, providing quick and smooth gear changes. While not a sports-oriented MPV, the 390T offers sufficient power for confident overtaking and highway cruising. The torque curve, peaking between 1750-4000 rpm, ensures readily available power in everyday driving situations. Compared to a hypothetical manual transmission version (which was not offered), the automatic prioritizes ease of use and comfort, making it ideal for urban driving and long journeys. The front-wheel-drive configuration provides adequate traction in most conditions, though it may exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The M8 I 390T typically came equipped with a comprehensive suite of features. Standard amenities included leather upholstery, a multi-function steering wheel, a large touchscreen infotainment system with navigation, and a rearview camera. Higher trim levels within the 390T range often added features such as a panoramic sunroof, power-adjustable front seats with heating and ventilation, premium audio systems, and advanced driver-assistance systems (ADAS) like adaptive cruise control and lane departure warning. Interior color schemes generally offered a choice between black and beige, with varying levels of trim accents. The overall interior design aimed for a premium feel, emphasizing spaciousness and comfort for all occupants.
Chassis & Braking
The M8 I 390T utilizes an independent McPherson strut suspension setup at the front and an independent multi-link suspension at the rear. This configuration provides a comfortable ride quality and good handling characteristics for a vehicle of its size and weight. The front brakes are ventilated discs, offering superior stopping power compared to solid discs, while the rear brakes are discs as well. An Anti-lock Braking System (ABS) is standard, enhancing safety by preventing wheel lockup during emergency braking. The steering system employs an electric power steering (EPS) rack and pinion setup, providing precise and responsive steering feel. Tire sizes varied depending on the trim level, with 17-inch and 18-inch alloy wheels being common options, typically fitted with 225/60 R17 or 225/55 R18 tires respectively.
Market Reception & Comparison
The Trumpchi M8 I 390T was generally well-received in the Chinese market, praised for its spacious interior, comfortable ride, and competitive features. Critics noted the improved performance offered by the 390T engine compared to the base models. Fuel economy, rated at 8.85 l/100 km (26.6 US mpg), was considered reasonable for a vehicle of its size and class. Compared to other MPVs in the Chinese market, such as the Honda Odyssey and Toyota Sienna (imported models), the M8 I 390T offered a compelling value proposition, often undercutting its competitors in price while providing a similar level of features and comfort. Reliability reports have been generally positive, though long-term data is still emerging as the model is relatively recent.
Legacy
The Trumpchi M8 I 390T represents a significant step forward for GAC Motor in the competitive MPV segment. The combination of the turbocharged engine and Aisin 8-speed automatic transmission proved to be a popular choice among Chinese consumers. In the used car market, the 390T variant typically commands a higher price than lower-spec M8 models due to its superior performance and features. The powertrain, while not without its potential maintenance needs (like any turbocharged engine), has demonstrated reasonable reliability in early reports. As GAC Motor continues to expand its global presence, the M8 I 390T serves as a testament to the brand’s growing capabilities in designing and manufacturing modern, feature-rich vehicles.


