Sure, but to be inspired by an older MB model is only logical, and I am not denying that's the case.
The execution of the new CL however, with the way the sheet metal is placed and stuff, is quite close to a 6er in my view. Even the headlights (and that's probably why bmer made this PS)
At first glance, the cars are vastly different, but when you look at the details, it is not so different after all.