☺️Is good that u have this tough, me at first same thinking as u, but then again how rough could it be on Malaysia road.. going genting & Cameron w 5pax  is non issues (only back seat w 3pax is suffering 😂)
Turbo is a must for the weight for Ativa, if without turbo still can but no pickuplah.
3cly engine now days is getting more popular as some company try to save the environment:
Kelisa, kenari, Toyota tank, axia, x70, Corolla,
Yes ativa cabin interior plastic is not as good as it seems

Test drive it, run 110kmj , will it be vibrate like hell 😂, will knows by then.

Have fun test drive bro.