Stretched 2026 GWM Tank 300L Revealed: Massively Powerful Hi4-Z PHEV Specs Detailed

A spokesperson for GWM Australia stated that the model is a domestic-market release for now, though the local product team is actively reviewing its viability and fit for Australian consumers. The local branch has previously indicated it sees strong potential for models equipped with the vehicle's new powertrain technology down under.

Mind-Boggling Power: The All-New Hi4-Z Powertrain

The defining highlight of the Tank 300L is the debut of GWM’s ultra-high-output Hi4-Z plug-in hybrid (PHEV) system. Unlike the more traditional, off-road-focused mechanical 4x4 setups seen in current Tank products, the Hi4-Z favors a highly advanced, dual-axle electric configuration.

The system pairs a 180kW/380Nm 2.0-litre turbocharged four-cylinder petrol engine with a massive 59.6kWh ternary lithium battery pack and two powerful electric motors.

• Front Electric Motor: Generates 180kW and 400Nm of torque.
• Rear Electric Motor: Generates 200kW and 415Nm of torque.
• Total System Output: A staggering combined 560kW of power and 1,195Nm of torque.

This immense powertrain rockets the large, heavy SUV from 0-100km/h in just 4.3 seconds. For context, that is a massive drop from the 6.1 seconds achieved by the shorter Tank 300 Hi4-T variant.

Instead of using a nine-speed automatic transmission and a mechanical part-time 4WD system, the Hi4-Z manages its power via a specialized three-speed front drive module with a power-split function, driving all four wheels via an 'intelligent electric' four-wheel-drive system.

Battery Efficiency and Off-Road Metrics

Despite its performance focus, the Tank 300L Hi4-Z claims a pure electric-only driving range of 200km on the WLTC cycle. Fuel economy is rated at an incredibly low 0.85L/100km when fully charged, rising to 8.35L/100km when the battery is completely depleted. To handle long journeys, it is equipped with an expanded 77-litre fuel tank.

Crucially, the vehicle maintains its genuine off-road capability. Ground clearance is rated at 235mm (1mm higher than the Hi4-T), while it matches its predecessor with an aggressive 38-degree approach angle and a 33-degree departure angle.

Stretched Dimensions and Modernized Cabin Tech

While it retains the blocky, retro-inspired aesthetic and lighting signatures of the standard Tank 300, the 300L is physically a much larger machine. Thanks to a heavily stretched wheelbase, it features a noticeably longer bonnet and cabin profile.

Coffee OS 3.0 and Autonomous Driving Tech

Inside, the 300L is packed with GWM's latest technology suite. The dashboard is dominated by a 15.6-inch infotainment touchscreen running the automaker's next-generation Coffee OS 3.0 operating system, complemented by a 12.3-inch digital driver's instrument display.

The SUV features a prominent roof-mounted LiDAR unit, working in tandem with three millimetre-wave radars, 12 ultrasonic sensors, and 11 high-definition cameras. This hardware layout facilitates a comprehensive Level 2 autonomous Navigation on Autopilot feature, capable of piloting the car automatically from parking space to parking space across all road types. Furthermore, a built-in Night Vision system utilizes a thermal imaging camera to stream live low-light feeds directly onto the driver's instrument cluster.

The Australian Outlook: Current Status

For the time being, the regular-length Tank 300 continues to sell locally with a choice of turbo-diesel or Hi4-T PHEV powertrains. The base turbo-petrol engine is currently being phased out, while the non-pluggable hybrid version has been dropped entirely.

Interestingly, GWM Australia intentionally decided not to import the heavily updated cabin interior debuted in China last year for the standard model. Local consumer research indicated that Australian drivers strongly disliked the newly introduced, column-mounted gear selector stalk, preferring the chunky, console-mounted shifter instead. Because the upgraded cabin could only be had with the column shifter, the local arm bypassed the update entirely. However, GWM has noted that a column shifter may become an unavoidable reality when a true, next-generation Tank 300 eventually surfaces.