The Acura RL is all new for 2005, and it's sleeker, sportier and more fun to drive than last year's model.The RL still uses a V6 engine, but it's much more powerful than before.And while previous RL models were front-wheel drive, the 2005 RL uses all-wheel drive for improved grip and superior stability and to handle the higher horsepower.The new RL offers the responsive handling of a sports sedan yet it rides smoothly. While the previous-generation RL had become big, bloated and boring, slinking around in the shadows of the Lexus LS430 and Infiniti Q45, the new RL compares quite favorably to BMW, Mercedes and Audi as well as Lexus and Infiniti.It's more fun to drive than a Mercedes E320.And while it may not offer the sporty rear-wheel-drive dynamics of the new BMW 530i, it's right with it on a race track. Acura's innovative all-wheel-drive system makes the new RL easy to drive and helps keep its driver out of trouble.Called Super-Handling All-Wheel Drive, the system overdrives the outside rear wheel when motoring around corners, improving the handling balance and enhancing stability.It feels solid in corners.It forgives minor driver errors and makes the driver look skilled.And of course it works exceptionally well in adverse weather.Honda's 300-horsepower VTEC V6 provides plenty of power yet the RL is rated 26 mpg on the highway. The RL is Acura's flagship luxury car.It's more luxurious and slightly larger than the sporty TL.The new 2005 RL is smaller outside but larger inside than last year's previous-generation model.