My wife has the Edition model with a 7- speed automatic. Silver on black. This car looks cool and is a blast to drive. Off the line, it's not especially quick. But once the RPM get above 2500, look out! This car really moves. You can accelerate to 80 MPH (and much higher)in the blink of an eye. And it sounds like a sports car. Terrific fun. The wife used to have a '03 SLK320. The '08 280 is a much better car. It has a much better ride and is much more fun to drive.
Exterior looks, 'Edition' chrome wheels, acceleration, handling, ease of parking, folding hardtop. It also has more interior room than you might think.
The standard sound system is horrible. It sounds like a table-top AM radio. The radio that I had in my 1966 Chevelle Malibu sounded better. What a disappointment for a high-end car.