Much ado about nothing IMO. Comparison tests don't signal a downfall at Mercedes-Benz. Mercedes is concentrating on quality and giving the customers what they want, hence rising sales all over the globe. You're asking about downfall regarding comparison testing? That is sill as hell to me. Mercedes, outside of the S-Class and the SL never won comparison testing with any regularity. Why is that so hard for people on this board to grasp? This is very, very old news. The 3-Series has always outsold the C-Class, again very old news. Uh the 3 has a coupe, wagon, convertible and a sedan to the the C's sedan, wagon and just now a coupe.
Mercedes' quality in just about survey you wanna google or pull from anywhere, is higher than Audi's or BMW's. At least in the U.S. they are leaving Audi and BMW in the dust when it comes to quality.
Yes it took Mercedes a good while to recover from the DCX marriage and the whole cheapness of the previous generation models, but Mercedes is on the mend, has been for several years now.
If you're going to say that Mercedes is having a downfall because they aren't winning magazine comparison testing, you have haven't been paying attention the last 20+ years and you're clearly out of the loop on as to what Mercedes has managed to accomplish in the last 5-7 years.
The only area where Mercedes has "fallen off" is in styling, and even that is not a shared opinion since they're selling everything they make, except the R-Class.
Mercedes will catchup in development with just one model, the upcoming S-Class. It will once again move the industry forward.
M