Hello together, I am looking for a new vehicle and was able to limit the search to a few vehicles, all BMW. It is intended to become a convertible, preferably with the B58 engine. In the selection therefore remain the F33 440i, the G23 440i and the G14 840i. Visually likes with the 840i by far best. What does it look like financially? Which components are significantly more expensive in the maintenance compared to the 4er? Insurance costs me in the year about 400 More, I have already checked that. Tires / rims should not take too much, what have I possibly not considered? Repairs / brakes / service will be more expensive, I am aware, but how is your experience with the 840i really much more expensive?