The Lexus RX is based on a modified version of the same platform used by the Toyota Camry and Lexus ES 350 sedans.
The current Lexus RX models build on the style set by the original RX 300. Its shape is defined by radically raked, body-colored pillars at the four corners of the cabin, with window frames blacked out to blend into the ovoid shape of the side windows.
The raked-back front fascia and headlamps are reminiscent of the Lexus ES 330 sedan, and the optional, gem-like high-intensity discharge headlights look like they mean business. The headlights also feature an Adaptive Front Lighting System, which uses an on-board processor to calculate the optimum angle to illuminate a turn then swivels the headlamp closest to the turn accordingly, allowing the driver to see better around corners.
The beefy front bumper and pronounced fender flares are designed to suggest the rugged, off-pavement expected in an SUV. Its door handles are of the reach-through type, which are generally more hand-friendly than the fingertip pull-up type, with less opportunity to break long fingernails or snap away from your fingers when you're in a hurry.
Viewed from the rear, the RX reveals a visor-like spoiler over the top edge of its rear window, a short radio antenna at the right-rear corner of the roof (promising better reception in marginal areas than the also-included imbedded-in-glass type), and clear-lens tail lights.
Subtle styling differences distinguish the RX 400h from the RX 350. Among them: a front bumper and grille designed to allow more air into the RX 400h engine bay for more cooling and tail lamps with LEDs instead of traditional incandescent bulbs.
For 2008, there are a few tweaks to the appearance of both models, with a new front grille design for the RX 350, a new grille finish for the 400h, and chrome door handles on both. The 400h models without a towing package sport a blue hybrid badge on the front, and the rear spoiler is color-keyed.
The RX 400h is also available with the 18-inch wheels and tires offered on the RX 350, and it says something about the thinking behind the hybrid. Lexus could have used hard, low-grip tires that reduce rolling resistance and further improve fuel economy, but chose to enhance handling instead.
The 400h hybrid powertrain adds less than 300 pounds to the curb weight and that's an impressive engineering achievement, given the powerful motors and batteries. They're all placed low in the vehicle, so they don't substantially raise the center of gravity or affect handling. While the hybrid does give up two gallons of fuel capacity, its 17.2-gallon tank is still larger than that in most vehicles, and it loses none of the 84.7 cubic feet of cargo space available in the RX 350.
2008 Lexus RX
The Lexus RX feels spacious when you settle in. It's luxurious and inviting. The optional leather upholstery is luxuriously soft and slightly bunched.
The RX 350 has splashes of walnut or bird's eye maple on the doors and center console and on its steering wheel. The RX 400h has brushed aluminum that resembles the metallic plastic used in both models around the gauges and switch plates and its steering wheel is wrapped completely in leather. For 2008, black bird's-eye maple wood trim is available with light-gray interiors on either model.
Getting into the Lexus RX is easy, with no need to climb up or duck down. The front seats are positioned off the floor at a comfortable chair height and are snug and supportive. The seat bottoms are relatively flat, making it easy to slide in and out. Folding armrests on both front seats offer more comfort on longer trips. The center console slides forward and back, allowing room for a purse or whatever else you might stow between the front seats.
The instrument cluster in the RX 350 features three large, round gauges trimmed in silver, with legible script and near-perfect backlighting. In the RX 400h, an illuminated meter replaces the traditional tachometer on the left, displaying the level of power generated by the hybrid powertrain. The driver can also monitor gas-electric power distribution on the multi-function display, which dominates the center stack and serves as the navigation screen in vehicles so equipped.
This seven-inch screen is also used for climate control and trip computer functions, and can display the outside temperature and clock (with alarm). It shows the image provided by the back-up camera, which is included with the navigation system and automatically activates when the transmission is shifted into reverse. You can't drive backward by watching the screen, but it's very useful for checking for low obstacles (and people) that would be difficult to see just by looking over the shoulder, and it also helps when backing the RX into a parking space.
The optional navigation system is one of the best. The current Lexus package includes voice activation, Bluetooth interface with compatible cellular phones and impressive shadowed graphics. There's a downside to many of these new, integrated control systems, to be sure, and the RX is no different. You have to press two buttons to change the fan speed, for example, rather than just one. Lexus dealers can program the default settings of many of the control functions, so be sure you have them tailor automatic door locking and other features to your preferences. If you're fighting some feature, it can probably be programmed to operate differently.
Overall, we find the switches and controls in the RX (and in Lexus cars generally) to be among the best. They're well placed, properly sized and soft to the touch, yet firm and positive in movement.
However, there are exceptions to this: The trip odometer can be hard to read. Perhaps more annoying, the switch that moves the outside mirrors is positioned such that, when drivers get the seat positioned in a comfortable position, many can't reach the mirror switch without leaning forward in the seat. Thus, they have to lean, adjust the mirrors and then lean back to check the mirrors from the position they'll take while driving. This trial-and-error process reminds us of old sports cars or trucks where you get out of the car, adjust the mirror, get out of the car, readjust the mirror. And in one of our test cars, the electric steering column moved in un-Lexus-like skips and lurches, rather than with a nice, smooth motion.
Audio controls in the RX are low on the center stack. The radio has big knobs for volume and tuning that are easy to use without distraction from the task of driving. The standard audio system sounds great, with 132 watts of output, eight-speakers and a CD-changer. We like that Lexus still includes a cassette for o
