2008 Mercedes-Benz C-Class C300 Sport 4dr Sedan (3.0L 6cyl 6M)
I have driven several luxury sedans and SUVs. If you are in the market to buy a high-bred, trust me when I say that this is not a luxury car. It is peppy enough considering what it is. It feels like nothing more than a VW Jetta. The interior is very plain and honestly kind of feels cheap. There is literally what looks and feels like aluminum on the doors and dash. Yes I understand that for 30K you can't expect to get much from MBenz. The car is cute and most likely reliable in the long term, but that's about it.
Exterior design is cute.
None. There's only so much you can expect from a Benz at this price range. For a real Benz, you'll have to cough up the dough.