Tangential question, but am I the only one who feels a bit lactose intolerant at cranking the piloting skills of de facto pillbox vehicles?
As an afterthought, shouldn't that question rather be "as rarely as vehicles actually need to make Driving skill rolls, why does anybody
bother with better drivers?" Stock TW rules give players little reason to ever improve their (non-hover) ground vehicle crews' Driving skill except for urban combat specialists; out in the open country, with no pavement to skid on or buildings to try to take shortcuts through, a Driving 7 crew is just about as good as a Driving 5 or even Driving 0 one, so I'm arguably not getting my BV's worth out of those skill boosts in the first place.
Keep in mind that this assumes stock TW rules only. I'm quite aware that TacOps provides some new challenges and opportunities to apply a tank crew's Driving skill to -- provided, of course, that the relevant sections actually get
used in play... :)