Family suitability Mitsubishi Galant 2500 V6 Combi

Hello together, I am faced with a difficult decision: have a good offer for a V6 Galant Combi, BJ 2000 in the advance variant with spoiler package, 17 inch rims etc.. I am looking for a family-friendly combi on it. It should definitely be a Japanese with enough space for a small family, I want the car to be converted to car gas and it should prove to me for the next 6 years faithful services. All I could discover so far were for the same price Mazda 626, Nissan Primera, Toyota Corolla or Mitsu Lancer. With a 6 cylinder Galant I get a decent portion more car for the money or am I wrong there. Certainly I will NOT heat with 200 things over the highway, but I am much more solid and comfortable traveling? What about the place compared to the other mentioned candidates? How family-friendly is the Galant? What about the running costs in the Vergl to the others, taxes, insurances, consumption… I build on your clues and advice, thank you, Erik