It says in the errata that you don't test for panic for units wiped out by shooting or magic if they were single models with less than 5 wounds on their original profile.

So does this include warmachines? Are they single models? And when you add up the wounds for them, do you add crew + war machine wounds or just the warmachine, so that if a lobba has 3 wounds and the crew each have 1, is that 6 wounds in it's original profile, meaning you do test for panic if the lobba is destroyed?