I saw this at the NY Auto Show. I really didn't know if I liked design or not but it was interesting. The R-class is the Mercedes version of a car based/sporty SUV. I think its main competition would be the Infiniti FX and the BMW X5.
As for this model, it doesn't look that accurate. The front looks alright but the rear looks a little off. I would like to see what the interior looks like. If anybody wants to see pictures of the real car to compare, I have a few from the autoshow.