We have a 04 C230 Coupe. My wifes car, we love it. Got about 80K mi, only problem areas, cup holder, just today my wife agreed to remove the fancy pop up one, $78 to replace for like the 4th time. Both doors needed to have the power lock replaced because there is an issue with the mechinisim not being lubed properly which caused drag which drove the microswitch nuts. So $400 to pay someone to change it out. Today her complaint about a rattling noise on start up turned out to be """" the alternator pulley clutch"""" WTH, but anyway $338. So in the last 8 yrs we've spent maybe $1000 on repairs.
The car drives great, the SC 4 gets 31mpg on the highway, my wife hit over 100 mph on the Montana freeway without even realizing it. Carries lots of stuff in the hatchback. I have Autoxed it and did my first HPDE in it. Only concern is the trailer hitch, I think you could find one but they aren't really common ya know.