New vehicle for motorway commuters

Moin, I’m still completely unreliable, which is the best way, therefore once again the attempt to get some light into the dark through the forum. Given: – Budget: ~250€ Financing mtl. (excl. maintenance) – planned driving performance 25,000 km / year, of which 90% highway (ruhr area) Requirements: – Comfortable for the highway – no nuckelpinne + sufficient space for people around 1.90m – storage room for suitcases + 2x beer box – climate – with younger likes with parking aid/camera and Navi – Kle incar or larger or SUV (Dacia Duster e.g.?) Where I am unreliable… Is it worth buying a new car / day registration and keeping it longer? So rather buy a young car and keep it for 10 years than a 5 year old still 5 years. With similar budget the older car would be “better”, since you get more car for the money in the case (and bigger maintenance costs?). I have among other things with Dacia (Sandero, Duster mind. Lauréate) and Renault (min. Clio (idealerwei) (Seen with Technopacket)) New cars under 10,000€ – with the mentioned equipment would hopefully still be within the scope. Can you possibly recommend equivalent or similar vehicles to me? Bzw. what would make sense with the budget on the used car market? 4-5 years and < 100,000 km or younger? Currently also the diesel topic is quite big, but is there also somewhere new car awards, if you don't give old carriages for scrapping? If yes, where? (never found) Is the Ruhr area worth it? If so, is there a Euro 5 diesel or is the danger of lockout too great?