The 2007 BMW M or "Motorsport" series is a comprehensive line of luxury vehicles including a sedan, coupe, and convertible as well as the Z4 M Coupe and Z4 M Roadster. You'll find a range of MSRPs (depending on configuration) from $50,100 (for the Z4 coupe) to $104,900 (for the M6 convertible.)

The great appeal of the M series is its obvious descent from racing vehicles. You're going to find some serious power under the hood, with the M5 and M6s sporting a five-liter V10 that produces 500 horsepower. Move into the Z4s and you'll get 330 horsepower from a 2.3-liter six cylinder. All the models have RWD.

It says something about the popularity of this BMW line that the company produces an MDriver Newsletter. Any time a model can generate that kind of interest and loyalty, its longevity is assured. Granted, as a top of the line luxury vehicle, a 2007 BMW M series isn't inexpensive, but it is an investment -- in both a proven name and a proven line. If you're after power, performance, and impressive blending of technology and luxury packed into one car, you won't go wrong shopping for an M.