In my opinion, yes, but it needs tweaking. Infantry in BT and thus AS, BF, SBF and up into ISW are very abstracted and almost an after thought. This abstraction is noted in various rulebooks and players are admonished to not to sweat the details and just go with it.
We revamped infantry via the Tech Manual and then added in actual trucks (motorised) or APCs (mechanised wheeled, track and hover). We ended up with Foot and Jump infantry only, the generic motor, mech and hover classification are discarded in favour of more 'crafted' companies and battalions. In the end our BF and Scaled SBF infantry is based on a 5 Element hybrid lance (foot infantry platoon and four carriers - trucks or apcs).
And, yes, they are more expensive but also somewhat more capable.
It's not canon but it has a better feel.
Cheers.