But the point of a minivan is higher centre of gravity…
why? what do you mean by minivan=higher CoG?
isn’t like all cars aim to lower their CoG as much as possible to reduce the possibility of rolling?
Yes yes but minivan is supposed to have higher seating (van like) and that’s raising CoG. It’s not like they are aming for higher CoG it just the way they are.
Simplified wagon is a sedan with an extra hatch while minivan is a hatchback with raised roof and seating. If you tell me where are you from I can give you an example from your market 
There are several minivan bodies in this thread, the not Pontiac trans sport the not ford flex and the not scion xb are they allowed?automationgame.com/phpBB3/viewtopic.php?f=38&t=8552&hilit=Scion
They are, although I still fear the Odyssey-esque Vanilla body is still OP in comparison.
The standard minivan’s drag coefficient is something like 0.185, while the vehicles I made (especially the Flex and xB, but xB is much too small to be a minivan) have something more realistic. I believe I made the Trans Sport 0.2, as any body drag has to be lower than the real vehicle due to not having grills or anything to reduce drag. As far as what constitutes a minivan, maybe only bodies that have options for 7 or 8 passengers that aren’t SUVs? Any minivan on the market only has those seating options, as those that only seat 6 might just be a “mini minivan” and anything above 8 is a full-sized van.
I’d say anything with 6-8 seats qualifies as a minivan from a modern perspective, given that front bench seats are largely extinct outside of vans and trucks.