What used Mercedes C-Class estate will I get for my budget?
How much does it cost to run a Mercedes C-Class estate?
Early cars cost only a couple of grand, but that will only get you a high-mileage car in basic trim without air-con. So, it's worth paying more if you can, and £5000 should buy a clean, reliable example with a good amount of kit.
On any car, choose an automatic version, even though they cost around £650 more than the standard manual.