W211 BEAST

I know they're kind of poser cars, but I like the look of a lot of old cars, but I'd never pay the big bucks for something that I'm only driving a few days a month. And I'd make the license plate something like "KIT KAR" so it doesn't look like I'm posing.

But, does anyone here have one? Anything that should be known before buying one? Anything to stay away from? Anything to look for?

Thanks