I am more a merc guy....but the bmw you putting up the deposit is a damn good car especially the engine..diesel is the best ...
to re quote omnipotent
1.the diesel engine by BMW is very much refined, the chattering is negligable
2. On public holiday on long trip, and I would say most pump in city center in any days, it is a bliss to pump diesel....not may lorries around, short que...i have great refueling experience with my boss Range Rover Diesel ...
3. No comment
4. What matter is that you will have great drive, great acceleration and top power at significantly low rpm.... city drive at ease....
another additional points for BMW
Somehow, you can find more "unofficial" mechanic with great talent , than merc....once you run out your warranty and need to save up for next buy, you can have low cost maintenance with unofficial workshop, with great ease of mind....more mechanic are good with BMW than Merc....
Ok, perhaps my opinion is not entirely correct...Despite being a petrol head, i drive a proton....hahahah....but i have great experience borrowing the BMW and Merc...so perhaps I am half glass full.....
1. Diesel chatter at idle
2. Sharing pumps with lorries at the petrol station
3. Unsightly exhaust fume when you floor it
4. Neighbour thinks petrol version costs more 