Advice, 3 cars to choose from

Actually I wanted to do it last year, but I always postponed it, but now I notice that I simply need another car with more traction. One thing in advance, I know that in the forums is always happy to buy vehicles with less engine capacity, PS, consumption etc., or that they are also often sharply criticized. My wife drives long distances to work accordingly she has a small panda, but for me the actually only short distance n drives (10,000km/year) this is out of the question. I love big cars and this should also be able to cope well with a trailer/caravan (also short distance). Of course, there are a lot of others too, but I shot myself on these 3 vehicles. Range Rover Sport Bj 2008-2009 = Have I driven for a day and I loved it. Audi Q7 Year 2007-2008= Had I once rented a car and it also liked me very much. Good overall package, but a little “boring” a ls the range (my feeling. Porsche Cayenne year 2007-2008= I haven’t driven it yet, but wanted to do it soon. Somewhere I heard, “do not do it, then you want it”. Well, against this vehicle speaks a little, which is too clichéd (in negative). So, to shorten that, I am aware of what there are for engines. That the consumption of the PC is higher than with the RRS and this again higher than with the Q7. not much of my knowledge after. The actual question is, what about repairs? I go to a free workshop anyway, where I felt well taken care of with each cart. But is there a vehicle what is more effective in terms of maintenance costs? Tires, brakes, timing belts etc…?