Nearly everyone can find a comfortable position behind the steering wheel of the GS. The combination of the 10-way power-adjustable driver's seat and a thick-rimmed steering wheel with an electrical tilt/telescopic control helps you find a comfortable driving position. The driver's seat itself is sculpted with an extensive set of bolsters that support you, though they are not so restrictive that they encumber easy ingress and egress.

The tilt/telescoping steering wheel is handsomely trimmed in wood and leather. In the traditional Lexus style, the instrumentation is set deep within the dash to promote easy focus by older drivers and also features electroluminescent instrument needles for heightened visibility. Across the dash panel, each gauge, button, knob, lever and wheel is clearly identified by easily read words or symbols, so you can intuitively grasp the meaning. There's soft-touch electronic actuation for virtually every control, from the window switches to the trunk release.

Dominating the center console is a seven-inch electronic screen with touch-screen controls. Two banks of menu buttons flank the screen. The driver uses this screen to operate the audio system, climate control, and optional navigation system with backup camera, although many functions are duplicated with nearby buttons on the dashboard. Navigating through the submenus doesn't take too much brainpower, but like most multi-tasking electronic systems, a day spent with the owner's manual on a quiet side street is the best way to figure out the way to work everything properly.

Lexus has made a quality audio system a key component of its brand identity, so it's no surprise that the GS sedan has a premium system. The standard 134-watt system features an AM/FM tuner with cassette tape and an in-dash, six-disc CD changer. It plays through a 10-speaker sound system. MP3 capability isn't offered. Audiophiles can opt for the Mark Levinson Premium Surround Sound system, developed especially for the GS interior. Utilizing 5.1 surround sound playback via a 7.1-channel speaker topology, its 330-watt amplifier sends the vibes through 14 speakers via 11 channels of amplification.

The DVD-based navigation system has information for more than 6 million points of interest, while route searching is conducted at ten times the speed of previous-generation systems. The screen has excellent resolution and the map images have three-dimensional shading to aid recognition. Voice recognition makes the system a hands-free experience for the experienced user, while Spanish has finally been added to the selection of text languages, which also includes English and French.

The Bluetooth-compatible telephone system can be operated by voice command or through the seven-inch touch screen.