January 19, 2009 Lexus Launches ‘RX450h’ and ‘RX350′ in Japan TOKYO, January 19, 2009 — Lexus … RX450h “version L” RX350 Both RX models are the latest versions of the RX, which was … RX450h “version L” RX350 Both RX models are the latest versions of the RX, which was previously unavailable in Japan. Next-generation crossovers that merge the luxurious ride and comfort of a sedan with the functionality of an SUV, they offer, at the highest levels, the environmental and safety performance demanded of 21st-century luxury vehicles.

2. Environmental and Driving Performance at Highest Level The RX450h is equipped with an advanced Lexus Hybrid Drive system and the E-Four system, which incorporates the first Lexus V6 3.5-liter engine that runs on the Atkinson cycle. Combined with a new inverter with excellent cooling performance to raise fuel efficiency, the result is the power of a 4.5-liter engine but with environmental performance that is one of the best in its class in the world. The Atkinson cycle engine delays intake and compression timing to generate a high expansion ratio with low compression, thereby limiting pumping loss during intake. An exhaust-heat recovery system reduces engine warm-up time. A cooled exhaust-gas recirculation (EGR) system brings the pressure in the intake manifold close to atmospheric pressure, thereby reducing piston pumping losses and improving fuel economy. The power control unit inverter element has a dual-side cooling structure, resulting in substantial size and weight reduction of the unit and increased torque. The RX450h features a switch-engaged Eco-drive Mode that prioritizes fuel efficiency by aligning driving force with accelerator use and by putting the air conditioner into a low energy consumption mode. Performance of Main Components of E-Four and THS II with Motor Speed Reduction Device THS II with motor speed reduction device Engine Engine model 2GR-FXE Displacement [cc] 3,456 Maximum output [kW (PS) / rpm] 183 (249) / 6,000 Maximum torque [N-m (kg-m) / rpm]317 (32.3) / 4,800 Front motor Maximum output [kW (PS)] 123 (167) Maximum torque [N-m (kg-m)] 335 (34.2) Reduction gear Gear ratio 2.48 Hybrid system battery Type Nickel-metal hydride Rated voltage [V] 288 (DC) Maximum output* [kW (PS)] 220 (299) E-Four Rear motor Maximum output [kW (PS)] 50 (68) Maximum torque [N-m (kg-m)] 139 (14.2)…

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