The all-new RX provides more comprehensive segment coverage in terms of powertrain choice than any previous generation. Lexus has brought to bear more than 15 years’ experience in electrified powertrain technology to embrace the evolution of the sector and provide a choice that includes the first plug-in hybrid electric RX, an accessible and efficient full hybrid electric model and, for the first time, a completely new performance hybrid, aimed at customers seeking a higher level of dynamic performance.

RX 500h: a game-changing performance hybrid with DIRECT4

2.4-litre turbo hybrid engine with six-speed automatic transmission and DIRECT4
Output: 371 DIN hp/273 kW
0-100 km/h: 6.2 sec *
CO2: 182-189 g/km *
Fuel consumption: 8.0-8.3 l/100 km *

The RX 500h marks a breakthrough in hybrid electric technology that sets it apart from any hybrid model that has gone before. Lexus has successfully shifted the focus from optimum efficiency to produce a model with a genuine performance edge, raising the RX’s appeal with customers who want high-end electrified performance.

It uses a completely new parallel hybrid architecture, featuring a turbocharged 2.4-litre turbo petrol engine and six-speed transmission, integrated front motor and power control unit, hybrid battery and a compact 76 kW rear e-axle. Total system output is 371 DIN hp/273 kW with 550 Nm of torque, giving 0-100 km/h acceleration in 6.2 seconds.

Parallel hybrid system
The front electric motor is positioned between the engine and the transmission (which has a clutch on both sides), enabling great flexibility in power delivery and the ability for the vehicle to run in all-electric EV mode. The hybrid control system automatically switches between parallel and EV modes according to the driving situation, giving both powerful acceleration and fuel efficiency. While performance is at a level typical for a 3.0-litre V6 petrol model, the RX 500h’s hybrid system can deliver around a 20% improvement in fuel economy.

The driver experiences powerful performance and drivability characterised by a direct, “torqueful” feel with minimal delay between pressing the accelerator and drive force being delivered to all four wheels.

Battery technology
The RX 500h uses a new low-resistance nickel-metal hydride (Ni-MH) battery unit that delivers high output while supporting fuel economy. It has a bipolar structure and adopts new high-output components. It is installed beneath the car’s rear seat, avoiding loss of cabin or load space and is quieter, thanks to refinement of its air cooling system.

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