None of the 7 Series models offer all-wheel drive, which is available on both of its most direct competitors: the Mercedes S-Class and Audi A8. Yet this BMW is soaked with cutting-edge automotive technology, and with it all there's a steep learning curve. Owners should prepare themselves for serious reading time with the owner's manuals. You'll need to explain even the most basic operations (like starting) to anyone else who drives their car. The 7 Series may be ahead of its time, or it may simply be beyond the effort many buyers are willing to invest.

Of course, there's always help from the dealership. Have the BMW store set all the gizmos, sit down and drive, and the annoyances will be reduced. If you embrace its styling, any of the three 7 Series models will do. Dynamically, this may be the best car in the class. And that's no small feat, given that the competition includes some of the best cars in the world.