Lexus Hybrid Adds Economy To Luxury

The Lexus RX 450H shows just how far hybrids have come. It was the first luxury crossover SUV as well as the first luxury full-hybrid SUV, and it couldn’t be more different from the teeny Insight or even the first-generation Prius, which absolutely defined dorky in automotive terms.

The RX crossovers have been a huge success among upscale drivers, and with the RX 450H, they can have their luxury SUV steak with a side order of smug frugality. Instead of the non-hybrid RX 350 with its 18 city, 25 highway fuel mileage, RX 450H breaks out with 30 city and 29 highway.

That difference probably won’t pay back the $7,000 extra cost over the regular gas-powered car for a whole lotta years unless gas prices spike into the stratosphere, but there is the daily psychological benefit of driving lean and clean. Plus, those sublime interludes when the Lexus is cruising through city streets in near silence on electric power only.

The Lexus RS was completely restyled for 2010, with a sleeker exterior and a more luxurious interior for its third generation. For many people, the RX pushes all the right buttons for versatility, accommodations, refinement and luxury.
The ride is soft and cornering is accompanied by plenty of body roll from the hefty SUV. But what it may lack in drivability, RX makes up for in cushy comfort. If insulation from the rough edges of the outside world is what you desire, then here it is, in spades.

The hybrid drive is generally seamless, though there is some jerkiness as the RX shifts between the electric motor and the gas engine. At low speeds, electric power become the only motivation up to about 40 mph, when the gas engine cuts in. At traffic lights and other stops, the engine shuts down to save fuel.

In the city and suburbs is where you save the bulk of your gas money. On the highway, it is what it is, though on downhill grades the engine will turn itself off until it’s needed again. A nicely designed video graphic helps the driver monitor the hybrid functionality around town, and saving gas can become something of a game to see how well you can do.

Acceleration is decent, though if you go poking too hard on the throttle at start ups, you’ll foil the fuel savings. Throttle response is fairly languid, anyway. The continuously variable automatic transmission is designed to make the most of the hybrid’s functionality, but it sets up an annoying drone when the gas engine is running.