Automatic hits vs Additional hits on 6's

[Djbz]

As the rules state a non-walker vehicle that has not moved in it's previous movement phase (or is immobilized) is hit automatically by melee attacks.
Skitarii "Taser" weapons and Gabriel Seth cause additional hits on a to hit roll of a "6" with their melee attacks.
Would you still roll "to hit" and get additional hits from the 6's or just bypass that rolling and miss out on those extra potential hits?

[ShadowcatX]

I believe you'd miss out on the possibility of extra attacks, but I can't swear to it.

[Lord Manton]

I would say it's similar to Gets Hot on a Plasma Canon. There's no "to hit" roll as such, but my understanding is that you still roll a D6 to see if you rolled the 1 triggering gets hot. In this situation, I'd let you roll to try to get your extra hits, and if you don't roll a 6 it doesn't change anything.