reliabilty

looking at the 04 C55 AMG estates, i know there isnt many about but i was wondering if anyone could tell me about there reliability with it having such a large engine in a small car and also what you think there future values will be, i'm looking for a powerfull car that wont depreciate to much...

We've had our '99 E300TD auto estate for a few months now my missus is worried about costs if the engine or gearbox needs repairs. Its got 158k on the clock with full history and so far we've had a minor service done and had a new exhaust fitted. I love the car and i think she does, but is...