Wel, congrats on the new car!
I think what KoenG means is just that buying a new car is always quite a big investment. And you always loose money on a normal car and more procentual in the first years. So the longer you keep a car and the more you 'get out of it', the more money you can save to buy a new car every 10 years or so..
Thats how I see it, please correct me if I'm wrong, Koen.