A few updates...
I have been working on a Hussar design that I like and this is about the best that I can come up with based off the pieces I have. The Hussar's lance is about three times the size of a standard minifig with the bikes capable of bringing them up to ramming speed from very short distances. The large wings make the units appear larger than they actually are which makes them slightly harder to hit.
The APC is boring as shit and looks very boxy. I pretty much hate the design but was messing around with the wheels I had and it was a quick and dirty design. The APC seats 6 pretty comfortably with weapons or gear in their hands and also has room for a driver and a gunner. There are twin auto-cannons on top for some decent firepower.
The back is just as boxy and boring as the front. The door closes and is very snug. The armor is pretty consistent all around with no real weak points.
The interior of the APC is pretty roomy for how big it is. There is room for 6 minifigs, a driver, and a gunner. The only door is the rear hatch and loading/unloading can be pretty slow.
All together now
Shown here is a 3rd bike I am working on like Bonn-o-Tron. It is more of a work horse that carries supplies and is capable of carrying wounded out of battle.