The SLK's are a fun little car with the supercharger, and the Vario room is pretty damn handy and amazing, but even though I am altitude challenged at 5'8", the wind coming over the windshield was annoying. Don't get me wrong, I'm all about the SL wind in my hair while I still have it experience, but the fact that the SLK's visors don't flip up and act as spoilers is a design defect for me. One thing that I do find interesting is that the entry and exit on my 107 and 129 are more abusive to the seat bolster than the SLK. I'm not sure about the geometry, but my hip does not seem to hit that seat bolster for some reason. consequently there is no wear on that car and my phone isn't constantly on the floor ! All that said, the 129 is a much more solid platform. The car is much quieter in all situations. Less road noise and vibration, less wind in the cockpit at 80 mph. As much as I like the wife having the SLK, It just isn't a manly car. As a matter of fact I will NOT take another dude anywhere in it ! Driving the wife is one thing, 2 dudes in a SLK scream "DATE" Like a miata. I know this is the eternal debate on the SLK site, but it is what it is. I don't mind driving the 600 with a buddy. There isn't a gay bone in a 129's body ! IMHO !