The 2006 Toyota Avalon remains unchanged from 2005, when it was redesigned with a larger frame and a more sleek and stylish exterior. The 2006 Toyota Avalon is offered in four trims: the XL, the Touring, the XLS and the Limited. As expected with a high-end vehicle, all 2006 Toyota Avalon models come standard with state-of-the-art safety features including seat-mounted side-impact airbags, side curtain airbags and a driver's side kneebag. The Touring is the sportiest version, featuring suspension tuning, alloy wheels and a rear lip spoiler. The Limited includes all the gadgets associated with luxury brand vehicles, including a six-CD, 12-speaker sound system, separate driver and passenger-side temperature controls and the Smart Key system, which allows the driver to unlock the door and start the ignition while the electronic key remains in a pocket or handbag. The 2006 Toyota Avalon is lauded for its roomy interior (especially the backseat) and smooth, quiet ride. The Avalon also gets surprisingly good gas mileage for a full-size sedan with a 3.5 L V6 engine, about 22/30 mpg using premium fuel. People interested in the Toyota Avalon may also have an interest in a Nissan Maxima, a well-built car with a slightly sportier feel.