A Redefined Off-Road System
Unlike traditional PHEV systems, the Hi4-Z offers substantial improvements over the previous Hi4-T system. The Hi4-T relied on a P-2 architecture with a torque converter and automatic transmission, which constrained trunk space and battery capacity due to the need for a drive shaft.
The Hi4-Z takes a leap forward with its revolutionary design. It incorporates a three-speed power split on the front axle, a two-speed reducer on the rear axle, and a large 59.05 kWh battery placed at the center of the chassis. This system addresses common off-road challenges, such as motor stalling or wheel idling, by employing advanced power shunting technology and multiple gears to optimize torque distribution.
Additionally, the vehicle retains a mechanical reverse gear for better control in tricky situations. A DeDion bridge design, similar to that of the Mercedes-Benz electric G-Wagon, ensures greater suspension travel, improved ground clearance, and superior motor protection.
Exceptional Performance and Range
The Hi4-Z features an 800V high-voltage platform, enabling fast charging of up to 163 kW. It achieves a 30-80% charge in just 15 minutes, providing an additional 120 km of range. The 59.05 kWh NCM battery boasts an energy density of 234 Wh/kg, delivering a pure electric range of 201 km (WLTC) and a combined range of 1,096 km (WLTC). Fuel consumption is a modest 8.6 L/100 km.
Power comes from the new Miller-cycle E20NB 2.0T engine, offering a peak power of 185 kW and 380 Nm of torque. Complementing this is a powerful dual-motor setup: the front motor provides 215 kW and 400 Nm, while the rear motor delivers 240 kW and 415 Nm. Together, the system outputs an impressive 645 kW and 1,195 Nm, propelling the Hi4-Z from 0-100 km/h in just 4.6 seconds.
Superior Off-Road Capabilities
The Hi4-Z retains a multi-link integral bridge suspension, unlike many hybrids that use decoupled systems. This enhances wheel travel and ground contact, crucial for overcoming difficult off-road obstacles. Its structural strength and suspension design make it ideal for extreme terrains.
Key off-road specs include:
- Approach angle: 29°
- Departure angle: 24°
- Minimum ground clearance: 210 mm
Exterior and Interior Features
Visually, the Tank 500 Hi4-Z closely resembles the Hi4-T, save for new badges. Its dimensions remain unchanged at 5078 mm (L) x 1934 mm (W) x 1905 mm (H), with a wheelbase of 2850 mm. Inside, the Hi4-Z offers premium features such as a 12.3-inch LCD instrument cluster, a head-up display, a 14.6-inch infotainment screen, and buttons for off-road controls like 4L and differential locks.