The i-Force Max hybrid system represents a groundbreaking development for Toyota trucks. It comes in two configurations: a twin-turbo V6 engine for models like the Tundra and Sequoia, and a four-cylinder single-turbo engine for the Tacoma, 4Runner, and Land Cruiser.

In the hybrid Land Cruiser and Tacoma, the system combines a 2.4L turbocharged engine with an eight-speed automatic transmission and a 48-horsepower electric motor, powered by a 1.9 kWh nickel-metal hydride battery. This setup produces a total output of 326 horsepower and 465 lb-ft of torque. The electric motor enhances performance by compensating during turbo lag or reduced efficiency, ensuring better towing capacity and smoother maneuverability.

Toyota has focused on achieving a balance between robust performance and environmental efficiency. Although improving fuel economy wasn't the system’s primary goal, the hybrid configuration delivers an additional 2 mpg in the city and 1 mpg on highways compared to traditional engines.

To meet the demands of heavy-duty truck usage, Toyota modified the 2.4L engine by reinforcing internal components such as bearing coatings for durability, upgrading the turbo for better towing and hauling performance, and enhancing the oil distribution system for efficient lubrication during steep climbs and extreme conditions.

Toyota also ensured simplicity and reliability by using a proven nickel-metal hydride battery. Additionally, the system includes tweaks to throttle response when operating in low-speed, high-torque four-wheel-drive modes, enhancing control in challenging terrains. During test drives, the hybrid system demonstrated an impressive harmony between the electric motor and turbo, delivering smooth power on rough trails without reminding drivers they were in a hybrid.

With Toyota's dedication to quality and precision, the i-Force Max hybrid system stands as a promising step forward, potentially positioning Toyota as a leader in the hybrid truck market.