BMW for a 25-year-old

Hi. I’m looking for a new car. I’m currently driving a BMW e46 with 318 hp. Since I’ve been driving a taxi at night shift for a year and I’m always travelling privately abroad, I have a lot of driving practice. Now I want to get a new car (BMW), because my current car is 15 years old and I also want something newer and stronger. I always wanted to get a Z4 E89, but since I’m getting my new car at 3-5 years of age I’m looking for a new car. I am afraid that I will have to sell the car directly after the end of the loan or maybe even during the loan period and in the end have made a bad business. At the moment I rarely drive more than another person and the trunk would probably be long at the Z4, but is it also suitable for long distances like Paris etc.? And the lack of everyday fitness would disturb me. In addition, the inflexibility with only two seats – nevertheless it is my dream car. My girlfriend and family thinks against that that does not fit if I want to start a family in a few years. Now the question arises to me which car I should get for it. It should be a BMW, which fits both into the current life but then also later, so as far as possible four seats but also neatly PS. I think of 2, 3 or 4 BMW. I want this with automatic transmission and >200 P S. It should not have run more than 70t km and it should be a gasoline engine. I am willing to spend <28000€ (credit over ~3-5/6 years) Do you have feedback on my idea/stimulation/proposals? LG