Another Lexus hybrid world first

The RX 450h represents a world first with the introduction of an Atkinson Cycle V6 engine in a hybrid, delivering a ride that optimises economy without sacrificing performance. Combining the Atkinson, or high expansion, Cycle with a 3.5 litre dual VVT-i V6 engine, Lexus continues to lead the field in hybrid technology.

The intelligent Lexus Hybrid Drive system

The Lexus RX 450h combines a sophisticated purpose-developed Atkinson Cycle 3.5-litre V6 petrol engine with a 123kW electric drive front motor, which effortlessly work together for a thrilling yet environmentally sensitive driving experience. When you press the start button and push the brake, the electric power is silently activated. As you accelerate, the power source switches seamlessly to the petrol engine when extra power is required. A second 50kW AC permanent magnet motor powers the rear wheels during take-off and acceleration. The RX 450h has the ability to travel up to two kilometres at low speeds on electric power alone*.

The world’s most efficient luxury SUV

The RX 450h impresses with fuel economy and efficiency figures closer to that of some small four cylinder hatchbacks. Consuming just 6.4 litres of fuel per 100km** with emissions of 150 grams of CO₂, these remarkable figures are unrivalled by any other luxury SUV in Australia. In fact, in a single year of motoring, the RX 450h will save the same amount of carbon emitted from eight return flights from Sydney to Melbourne¹. In the pursuit of a vehicle that is kinder to the environment, the performance and space demanded by SUV owners has not been neglected with a ride that is both smooth and powerful.

The ease of Electric Power Steering

When you're driving straight ahead, no steering assistance is provided which reduces fuel consumption because, unlike conventional systems, Electric Power Steering only provides assistance when you turn. Being speed-sensitive, it also ensures maximum assistance while parking as well as greater road feel at higher speeds.

Electronically controlled braking

Equipped with an electro-hydraulic braking system, the RX450h delivers greater brake-force distribution because the hydraulic pressure of the brakes on each wheel is controlled independently and progressively. This means the reassurance of outstanding vehicle control whether you’re driving in city traffic or tackling tougher off-road terrain.

Regenerative braking

When slowing down or braking, energy is lost in a normal vehicle – largely through the brakes creating heat. The Lexus Hybrid Drive system allows for energy-saving regenerative braking on both the front and rear axles. Regenerative braking captures the vehicle's 'kinetic' energy and converts it into electrical energy, which is then stored in the hybrid battery. This electricity is later put to good use by the electric drive motors to propel the vehicle.

*Using EV mode and depending on battery charge condition and road gradient.

**Fuel consumption will vary depending on driving conditions/style, vehicle conditions and options/accessories. Source of fuel consumption data: ADR81/02 combined cycle.

¹ Carbon equates to seat carbon per flight.