Guys, what do u guys think if I were to trade in my alza for.. let's say.. a polo sedan?

Is it considered as a downgrade or upgrade?

DG or UG? Sorry, I don't quite understand you there.
Initially it was to replace my retired wira sedan (given to sister after I got married). Anyway, it's just me wifey and our son.. so the 3 of us (plus his child car seat and stroller) are always there wherever we go. Fyi, the alza just passed its 60k service last month.
It just came to me that perhaps someday I might wanna get a good (german/japan/etc) car, good enough for family wkend drive and occasionally balik kampung during festive season.