MAX passenger limitations?

[Kriegson]

Apparently, MAX's will be able to ride in vehicles in some form or another and be spawned at Gal's that are specced for it, maybe even commanders with the squad spawn cert.
This being the case, how do you think having a MAX in a vehicle, or being spawned right into a location be handled? What kind of vehicles should they and should they not be allowed into? Any detrimental effects for doing so?

Imo if a MAX is in a vehicle, it should require 2-4 spots that could otherwise be filled with infantry. This in itself prevents someone from fitting a MAX in a buggy or quad with a simple mathematical limitation.
When a MAX spawns in on a commander (Assuming they can) or exits/drops from a vehicle, it should take a moment to power up before it can act. This would mean you simply couldn't drop a MAX in the midst of a battle (barring some certs) or jump out of a sunderer and start shooting immediately.

Forgive me if this has already been answered or explained in depth, or if MAX's likely aren't going to be so signifigant on the field as to need these kinds of limitations.