If my wife would drive it, I would buy this car in a heartbeat. If I didn't have my S4, I'd buy this car in a heartbeat. Timeless design and style, nearly as clean if not as clean as a new car, has everything one could want in a sedan and IMO is one of the best styles of MBZ out there. Ask the average person what year it is and they either wouldn't know, especially on the exterior or they'd likely say less than 5yrs old.
Repair wise, if you want scarey, think S4. I'm modded, have no warranty, and I'm okay with that. However, if the rear end blows up it's $4k the tranny is $5-7k. Those are the two areas I worry about. Thankfully I'm prepared if they do and don't abuse it. On top of that the 14's are very solid in both regards. Not so with the 2010 to 2012's.
In the end, I just rubbed one out to this car again