The Li ONE, specifically the facelifted 2021 model year with the 1.2T engine and 40.5 kWh battery pack, represents a significant entry into the burgeoning plug-in hybrid electric vehicle (PHEV) market. Produced from May 2021 through 2022, this variant aimed to bridge the gap between pure electric driving and the range security offered by a gasoline engine. Positioned as a mid-to-upper range offering within the Li ONE lineup, it provided a balance of performance, efficiency, and luxury features. The Li ONE was designed primarily for the Chinese automotive market, where demand for both electric vehicles and spacious SUVs is high. It distinguished itself with its extended range capabilities and sophisticated powertrain architecture.
Technical Specifications
| Brand | Li |
| Model | ONE |
| Generation | ONE (facelift 2021) |
| Type (Engine) | 1.2T 40.5 kWh (333 Hp) Extended Range 4WD |
| Start of production | May, 2021 |
| End of production | 2022 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 6 |
| Doors | 5 |
| Fuel consumption (economy) – combined (NEDC) | 1.5-8.8 l/100 km (156.8 – 26.7 US mpg, 188.3 – 32.1 UK mpg, 66.7 – 11.4 km/l) |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 100 km/h | 6.5 sec |
| Acceleration 0 – 62 mph | 6.5 sec |
| Acceleration 0 – 60 mph | 6.2 sec |
| Maximum speed | 172 km/h (106.88 mph) |
| Weight-to-power ratio | 6.9 kg/Hp, 144.8 Hp/tonne |
| Weight-to-torque ratio | 5.1 kg/Nm, 197.8 Nm/tonne |
| Gross battery capacity | 40.5 kWh |
| Battery technology | Lithium nickel manganese cobalt oxides (Li-NMC) |
| Battery location | Below the floor |
| All-electric range (NEDC) | 188 km (116.82 mi) |
| Average Energy consumption (NEDC) | 16.9 kWh/100 km (27.2 kWh/100 mi, 124 MPGe, 5.9 km/kWh, 3.7 mi/kWh) |
| Electric motor power (Rear) | 197 Hp |
| Electric motor Torque (Rear) | 215 Nm (158.58 lb.-ft.) |
| Electric motor location (Rear) | Rear axle, Transverse |
| Electric motor type (Rear) | Synchronous |
| Electric motor power (Front) | 136 Hp |
| Electric motor Torque (Front) | 240 Nm (177.01 lb.-ft.) |
| Electric motor location (Front) | Front axle, Transverse |
| Electric motor type (Front) | Synchronous |
| System power | 333 Hp |
| System torque | 455 Nm (335.59 lb.-ft.) |
| Power | 131 Hp @ 5500 rpm |
| Power per litre | 109.3 Hp/l |
| Engine layout | Front, Transverse |
| Engine Model/Code | DAM12TD |
| Engine displacement | 1199 cm3 (73.17 cu. in.) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Kerb Weight | 2300 kg (5070.63 lbs.) |
| Max. weight | 2825 kg (6228.06 lbs.) |
| Max load | 525 kg (1157.43 lbs.) |
| Fuel tank capacity | 55 l (14.53 US gal | 12.1 UK gal) |
| Length | 5030 mm (198.03 in.) |
| Width | 1960 mm (77.17 in.) |
| Height | 1760 mm (69.29 in.) |
| Wheelbase | 2935 mm (115.55 in.) |
| Front track | 1652 mm (65.04 in.) |
| Rear (Back) track | 1672 mm (65.83 in.) |
| Ride height (ground clearance) | 180 mm (7.09 in.) |
| Approach angle | 21° |
| Departure angle | 23° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the generator only, with no mechanical connection to the drive. Two electric motors drive the front and rear wheels. |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 1 gears, automatic transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 255/50 R20 |
| Wheel rims size | 8.5J x 20 |
INTRODUCTION
The Li ONE (facelift 2021) 1.2T represents a significant step in Li Auto’s strategy to offer extended-range electric vehicles. Introduced in May 2021, this version built upon the original Li ONE platform (based on the 1HX0 architecture) by refining its powertrain and adding updated features. The core concept behind the Li ONE was to provide the benefits of an electric vehicle – quiet operation, instant torque, and zero tailpipe emissions – without the range anxiety associated with purely battery-electric vehicles. This was achieved through a unique series hybrid system where the 1.2-liter turbocharged engine acts solely as a generator to charge the 40.5 kWh battery pack, powering the electric motors that drive the wheels. This configuration allowed for a substantial all-electric range of 188 km (116.82 miles) under NEDC testing, and a total range exceeding 800 km (497 miles) with the gasoline engine contributing.
Powertrain & Engine Architecture
At the heart of the Li ONE 1.2T lies a sophisticated powertrain. The 1.2-liter DAM12TD three-cylinder turbocharged engine, producing 131 horsepower at 5500 rpm, is not directly connected to the wheels. Instead, it drives a generator, which in turn charges the 40.5 kWh lithium nickel manganese cobalt oxide (Li-NMC) battery pack. This battery powers two electric motors – a 197 hp motor driving the rear wheels and a 136 hp motor powering the front wheels – resulting in a combined system output of 333 hp and 455 Nm (335.59 lb-ft) of torque. The single-speed automatic transmission is integral to the electric motors, providing seamless power delivery. The engine utilizes direct fuel injection and a double overhead camshaft (DOHC) valvetrain for optimized combustion efficiency. The use of a three-cylinder engine, while unconventional, allowed for a compact and lightweight design, contributing to the vehicle’s overall efficiency.
Driving Characteristics
The Li ONE 1.2T delivers a driving experience that prioritizes smoothness and refinement. The instant torque from the electric motors provides brisk acceleration, with a 0-60 mph time of around 6.2 seconds. The absence of a direct mechanical link between the engine and the wheels results in a remarkably quiet cabin, even under hard acceleration. The automatic transmission, optimized for electric motor operation, offers seamless gear changes. Compared to potential higher-output versions (had Li Auto offered them), the 1.2T prioritizes efficiency over outright performance. While the acceleration is certainly adequate, it doesn’t offer the same visceral thrill as a more powerful engine. The all-wheel-drive system provides excellent traction and stability in various driving conditions.
Equipment & Trim Levels
The 2021 Li ONE facelift generally came well-equipped as standard. Interior features typically included leather upholstery, a large touchscreen infotainment system, a premium sound system, and advanced driver-assistance systems (ADAS) such as adaptive cruise control and lane-keeping assist. The six-seat configuration offered ample space for passengers. Optional extras could include upgraded interior trim materials, a panoramic sunroof, and enhanced ADAS features. The overall interior design focused on a minimalist aesthetic with a focus on technology integration.
Chassis & Braking
The Li ONE 1.2T features an independent suspension system at both the front (McPherson strut) and rear (multi-link) to provide a comfortable ride and stable handling. Stabilizer bars are included on both axles to reduce body roll during cornering. The braking system utilizes ventilated discs on all four wheels, providing ample stopping power. The inclusion of ABS (Anti-lock Braking System) further enhances safety. The vehicle’s relatively high curb weight of 2300 kg (5070.63 lbs) is mitigated by the instant torque of the electric motors and the well-tuned suspension.
Market Reception & Comparison
The Li ONE was generally well-received in the Chinese market, praised for its extended range, comfortable ride, and spacious interior. Critics noted the unique series hybrid powertrain as a clever solution to range anxiety. Compared to other PHEV SUVs available in China, the Li ONE offered a longer all-electric range and a more refined driving experience. Fuel economy figures ranged from 1.5 to 8.8 l/100 km, depending on driving conditions and usage of the gasoline engine. Reliability reports have been generally positive, with owners reporting few major issues.
Legacy
The Li ONE 1.2T played a crucial role in establishing Li Auto as a significant player in the Chinese EV market. While production ended in 2022, the model remains a popular choice in the used car market. The powertrain, while complex, has proven to be relatively reliable, and the availability of spare parts is generally good. The Li ONE’s success demonstrated the viability of the extended-range electric vehicle concept and paved the way for Li Auto’s subsequent models, solidifying its position as an innovator in the new energy vehicle sector.
