Nope. D weapons don't "automatically remove" anything. There is a chart...roll a d6. 1= pen or no effect, 2-5 = explodes or 1d3+1 wounds, 6= explodes or 1d6+6 wounds. They inflict the same number of hp on a SH that they would inflict wounds on a non-vehicle. You can't take saves, but with a little luck most MC can take a D hit and live.
Terminators are boned, but if you need a 800 point model the size of a toddler to kill terminators you should probably work on learning to play.