Which used Mercedes C-Class saloon should I buy?
There's a huge range of engines to choose from. The C180 and C200 are the most common and the best value because they're affordable to buy and run. We'd go for the C200 - you get better performance without paying for it too much in fuel economy.
The other petrol engines are also solid performers. Power steps up in small amounts as you go through the range from C230, C240 and C280 to the supercharged C230K. The AMG version is super-quick, but it's extremely pricey to buy and run compared with the others.