Reliable and economical 7 seaters wanted!?

Hello dear ones, I am looking for a 7 seater, which should be economical and not too high in the insurance. The following features are important: -In the radius 100 km from 67227. – driving distance per year about 13000 km, even a long holiday trip, should be in addition. -60% highway, 40% city. This actually also daily. -Buget is maximum 15000. -Important is large trunk, parking aid, possibly Navi. -Spritzy and safe overtaking on the highway should be possible by car, anson The car should serve us for several years. About 10 years would be good. Thank you in advance. Wolfgang