Purchase advice reliable PS-stark gasoline (V6) 5-10K EUR

moin together, currently driving a 530d xdrive Touring BJ 2013 and looking for a reliable gasoline, rather V6 without direct injection, than second car. Kombi wouldn’t be bad. I have to admit the car is driven mainly short distance (rather from my wife) but we don’t like the small cars. Power must be when it comes to it. If I should sell my BMW, the car will of course – at least pass – also used as family carriage with two children. I have C 280 in sight as T model BJ 2005-2008, can you recommend alternative to me? A V6 should be already, the time when we can still drive things is slowly coming to an end… 1.) Insurance should not be overpriced, it will only be taken out of liability 2.) Parts & maintenance prices should stay within the frame and I should not wait for a part forever… 3.) Alternatives should not be bigger than the C class, as often also city rides will be included. 4.) Kombi, SUV, Van prefers we 5.) I don’t want to exceed 10K on budget, but I could actually use a little more. The cheaper, of course, the better. Thank you for your opinions and suggestions… Mel