First off: No kodiak is faster then any Yalm.
Yalms seems to add at least +1000 to runspeed, regardless of QL and description.
That might be a bug though.
Btw I think it is ridicolous that a Ql 30 yalm have the same performance as a QL 200 Yalm.
Oh, and if you have a yalm that allows you to cast nanos then I want put my SMG out of the side window on mine. ;P
I'd say they should add new vehicles that maybe allows you to fight and cast nanos, but they should have drawbacks.
Maybe higher cost.
Requiring maintanence/creds.
Maximum altitude.
Maybe some hacked versions would stop working after a while.