The RX is the best-selling Lexus, and one in five sold is the hybrid version. It's no surprise, then, that with the new third-generation RX - the second to have a hybrid powertrain - Lexus is treading very carefully.
The design is a careful evolution, both inside and out. The car is slightly longer and wider but manages to look sleeker than before. The interior retains the traditional Lexus virtues of comfort (on even bigger, cushier seats) and refinement (with available semi-aniline leather for a still more luxurious feel). Lexus has joined the Germans by adopting an iDrive-style controller instead of a touch screen for its optional navigation system. But rather than a knob you twist and push, the Lexus control (called Remote Touch) works more like a joystick that you move from side to side or forward and back, and then make a selection by pressing buttons on the side of the unit. It takes some getting used to.
Other new options don't require a learning curve, such as the head-up display and the curb-view camera; the latter is located in the right-side mirror, and at low speeds it shows an image of what's alongside the car. The hybrid model supplements its previous ECO indicator, which lights up when you're driving efficiently, with a selectable ECO mode, which changes the responsiveness of the throttle and instructs the climate control to use the A/C compressor more judiciously. There's also an EV mode, which extends the threshold before the engine starts, up to a still-modest 8 to 10 mph.
The changes aren't dramatic, but Lexus has given its cushy suburban hybrid a slightly greener tinge. Lexus engineers identify four elements that underpin the brand's hybrids: performance, quiet refinement, low emissions, and fuel economy. In this redesign, the latter received the most emphasis.
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