I had stuggled between the Acura RL and the Lexus GS. I have had the car for about 3 weeks and I really love it. The ride in the GS is very smooth and quite peppy. Simply put, the GS is classy. So if you are looking for a refined car that is great on gas and has a nice ride this is it. I leased my car and in 3 years who knows what will be out there.
Comfortable ride and nice audio system.
The navigation and voice commands are inferior to my last Acura (2004 TL). If they fixed that, I think the car would be incredible.
Smoooth best describes the GS 300 AWD. Have owned a number of mid-sized sedans including BMW 5 series, and Audi A6 2.7t, the Lexus is considerably quieter with a smoother ride, but gives up a bit of ultimate handling if you like to shave a 10th of a second off your time turning into the local shopping center. On the highway, it's hard to beat with a natural (and potentially ticket collecting) cruising speed of 75 to 80 mph while returning 26 mpg. Overall, if you are not driving at 10/10ths all the time, it's a great compromise between ride and handling, not to mention Lexus reliability and build quality.
The Mark Levinson sound system is in a class of it's own... it's subtle, but the more you listen, the better it sounds. The AM & FM tuner are superb. Also love the the keyless entry and start button... it's a "must have". The HID headlights that "steer" are great.
The nav & phone only allow you to access pre-programmed locations and numbers while moving. Otherwise you must stop, although you can cheat the phone by dialing from your cell, but the connection takes much longer. Overall, a little too much "Big Brother" for my taste, but nothing is perfect.
My AWD GS 300 holds the road as though Elmer's glue was on my tires. The rear camera make parking a breeze. The nav system is a pleasure... but it is the driving experience that sets this car apart from all others.
Even with the rear view camera and the tilt side mirrors I have trou ble seeing all that is behind me as I reverse.