It optimizes the drive force of the front and rear wheels via an electronically controlled coupling (wet-type multi-disc clutch) on the rear differential. The front/rear drive force distribution is constantly variable from 75:25 to 50:50 depending on the situation, providing both excellent traction and linear steering.

Drive force control uses information collected from wheel speed, acceleration, and steering angle sensors to help optimize the drive force distribution ratio of the front and rear wheels between 100:0 and 20:80 (front wheels: rear wheels), contributing to enhanced start-up acceleration, handling stability, and fuel economy. When accelerating from a standstill or in a straight line, the system controls vehicle pitch to provide a direct acceleration feel. When cornering, the system controls drive force distribution according to driving conditions, contributing to excellent handling stability, as well as an exhilarating performance that allows the vehicle to turn smoothly. Lexus has combined electrification and vehicle motion control technologies that it has cultivated over the years to deliver a driving experience where the driver can have an intimate dialogue with the car.

2.4L-T HEV on the RX500h features a front unit integrating a 2.4L turbocharged engine, motor, a 6-speed automatic transmission and an eAxle with a built-in high-output motor driving the rear wheels, and a high-power bipolar nickel-metal hydride battery under the rear seats. This system harnesses the powerful torque of the turbocharged engine and the quick response of the motor torque to provide a direct, torque-filled, and continuous acceleration feel. In addition, the 6-speed AT uses a wet start clutch in place of a torque converter, offering a rhythmic and responsive shift feel. Furthermore, the transaxle uses a built-in clutch to separate the engine and motor, allowing them to be used independently or together depending on driving conditions.