The 2006 BMW 6 Series delivers stellar performance, brilliant handling and that arrow-like stability that defines BMW. It's a premium grand touring car and is available as a coupe or convertible.

The 2006 models bring a slight change in 6 Series nomenclature and more of what we like best in this car: power. Thanks to a new engine, the 645Ci Coupe and 645Ci Convertible have become the 650i, respectively. The new 4.8-liter V8 is slightly larger than its predecessor with 10 percent more horsepower and torque. (Apparently 648i didn't have quite the ring as 650i.)

Other changes for 2006 include new wheel designs, new exterior colors and some interesting, if minor, tweaks inside. Active Steering, a high-tech BMW system appreciated by some driving enthusiasts and hated by others, is now a stand-alone option and no longer required as part of the popular Sport Package.