All the versions are of same size in the short wheel base irrelavant of Super GL or DX versions.
Other versions are Wide, Wide Super Long.
To Check whether the vehicle is converted to super GL, there is a site where you enter the vehicle's chassis no. & it tells you whether its a DX or Super GL, Colour Code & Stuff.
I was having a town ace LOTTO for the past 10 years & it was a manual gear vehcile, after i sold it only i got to know this site & just entered my LOTTO's chassis no. to my shock it was manufactured as an auto gear vehicle.
It even tells you whether the van is JUST LOW or not (but this works only for the town ace model) most probably the lotto version... http://jpnauction.com/month