The IM LS6 II 1.5T 52 kWh (313 Hp) Extended Range, launched in September 2025, represents IM’s entry into the competitive plug-in hybrid electric vehicle (PHEV) SUV market. Positioned as a mid-range offering within the LS6 II lineup, it balances electric range with the convenience of a gasoline engine. The LS6 II is built upon a dedicated EV platform, showcasing IM’s commitment to new energy vehicles and advanced automotive technology. This variant aims to appeal to consumers seeking a blend of efficiency, performance, and practicality in a stylish SUV package.
Technical Specifications
| Brand | IM |
| Model | LS6 |
| Generation | LS6 II |
| Type | 1.5T 52 kWh (313 Hp) Extended Range |
| Start of production | September, 2025 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (combined) | 0.23-5.43 l/100 km (1022.7 – 43.3 US mpg, 1228.2 – 52 UK mpg, 434.8 – 18.4 km/l) |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 100 km/h | 6.4 sec |
| Acceleration 0 – 62 mph | 6.4 sec |
| Acceleration 0 – 60 mph | 6.1 sec |
| Maximum speed | 200 km/h (124.27 mph) |
| Weight-to-power ratio | 7.5 kg/Hp, 133.2 Hp/tonne |
| Weight-to-torque ratio | 5.5 kg/Nm, 183 Nm/tonne |
| Gross battery capacity | 52 kWh |
| Battery voltage | 800 V |
| Battery technology | Lithium iron phosphate (LiFePO4) |
| Battery location | Below the floor |
| All-electric range | 290-370 km (180.2 – 229.91 mi) |
| Average Energy consumption | 17.3 kWh/100 km (27.84 kWh/100 mi, 121 MPGe, 5.8 km/kWh, 3.6 mi/kWh) |
| Electric motor power | 313 Hp |
| Electric motor Torque | 430 Nm (317.15 lb.-ft.) |
| Electric motor model/code | TZ210XS1141 |
| Electric motor location | Rear axle, Transverse |
| Electric motor type | Synchronous |
| System power | 313 Hp |
| System torque | 430 Nm (317.15 lb.-ft.) |
| Power | 155 Hp |
| Power per litre | 103.6 Hp/l |
| Engine layout | Front, Transverse |
| Engine Model/Code | 15FNE |
| Engine displacement | 1496 cm3 (91.29 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 | DOHC |
| Kerb Weight | 2350 kg (5180.86 lbs.) |
| Max. weight | 2800 kg (6172.94 lbs.) |
| Max load | 450 kg (992.08 lbs.) |
| Trunk (boot) space – minimum | 606 l (21.4 cu. ft.) |
| Trunk (boot) space – maximum | 1822 l (64.34 cu. ft.) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
| Length | 4937 mm (194.37 in.) |
| Width | 1988 mm (78.27 in.) |
| Height | 1673 mm (65.87 in.) |
| Wheelbase | 2960 mm (116.54 in.) |
| Front track | 1702 mm (67.01 in.) |
| Rear (Back) track | 1706 mm (67.17 in.) |
| Minimum turning circle | 11.5 m (37.73 ft.) |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Number of gears and type of gearbox | 1 gears, automatic transmission |
Powertrain & Engine Architecture
The IM LS6 II 1.5T utilizes a sophisticated plug-in hybrid architecture. The core of the system is a 1.5-liter turbocharged inline-four cylinder gasoline engine (code 15FNE) producing 155 horsepower. This engine operates solely as a generator, charging the 52 kWh lithium iron phosphate (LiFePO4) battery pack. The vehicle is primarily driven by a 313 horsepower synchronous electric motor located on the rear axle. This configuration allows for a purely electric driving range of 290-370 km (180.2 – 229.91 miles). The engine features direct fuel injection and a double overhead camshaft (DOHC) valvetrain, optimizing combustion efficiency. The single-speed automatic transmission delivers seamless power to the rear wheels. The 800V battery architecture enables faster charging times compared to lower voltage systems.
Driving Characteristics
The LS6 II 1.5T offers a refined driving experience, prioritizing comfort and efficiency. In electric mode, acceleration is brisk and linear, with the electric motor providing instant torque. The rear-wheel-drive layout contributes to balanced handling. When the gasoline engine engages, it does so seamlessly, primarily to extend the range. While the combined system output of 313 hp provides adequate performance – achieving 0-60 mph in approximately 6.1 seconds – it’s not geared towards outright sportiness. The single-speed transmission simplifies operation, but lacks the gear ratios found in traditional automatic transmissions. Compared to potential higher-output variants, this version emphasizes fuel economy and a smoother, quieter ride.
Equipment & Trim Levels
The LS6 II 1.5T Extended Range comes standard with a comprehensive suite of features, including a large touchscreen infotainment system, advanced driver-assistance systems (ADAS) such as adaptive cruise control and lane keeping assist, and premium interior materials. Standard upholstery is a high-quality synthetic leather, with optional upgrades to genuine leather available. The dashboard features a minimalist design with integrated digital displays. Available options include a panoramic sunroof, a premium sound system, and ventilated front seats. The trim level focuses on providing a balance of luxury and technology without the higher price point of the top-tier models.
Chassis & Braking
The LS6 II utilizes a coil spring, double wishbone front suspension and an independent multi-link rear suspension, both incorporating transverse stabilizer bars to minimize body roll. Ventilated disc brakes are employed on all four wheels, providing ample stopping power. The vehicle is equipped with ABS (Anti-lock braking system) and electronic stability control. The suspension is tuned for comfort, prioritizing ride quality over aggressive handling. Tire sizes vary depending on the selected wheel size, with options ranging from 235/50 R20 to 265/40 R21.
Market Reception & Comparison
Initial reviews of the IM LS6 II 1.5T Extended Range have been generally positive, with critics praising its long electric range, comfortable ride, and well-appointed interior. Fuel economy is a strong point, with combined figures ranging from 0.23-5.43 l/100 km. Compared to other PHEV SUVs in its class, the LS6 II offers a competitive electric range and a relatively affordable price point. Some reviewers have noted that the interior design, while modern, lacks the premium feel of some European competitors. Reliability data is still emerging, but the LiFePO4 battery technology is known for its durability and safety.
Legacy
The IM LS6 II 1.5T Extended Range represents a significant step forward for IM in the PHEV market. The combination of a relatively efficient gasoline engine, a large battery pack, and a powerful electric motor provides a compelling alternative to traditional gasoline-powered SUVs. The long-term reliability of the powertrain remains to be seen, but the use of LiFePO4 battery technology suggests a long service life. As the used car market matures, this variant is expected to appeal to buyers seeking a practical and efficient SUV with a reduced environmental impact.
