Well i was playing about in LDD so heres some basic vehicles:
Basic transport and resuply truck lesss room for men more for cargo, but can still hold a driver and up to 3 men+weapons
Here is one with a missile battery pack. and the standard room for driver, gunner and 4 figs
Here's the heavy cannon version mainly siuted to taking don heavier veicles.
And heres the command version with multiple antenna arrays.
And heres the public dipersal wagon with side mounted megaphones grenade launcher and light guns