You are well within range of magicx100m... the convoy is moving but only a few seconds have passed when it is picking up speed (crap acceleration)...given that Al is now trying to play chicken with the LAV that is VERY close! 
Chicken. Yes, Like the sound of that.
The body and momentum of that whole train, even at 25 MPH…
Yeah, I'd love to ram those child-killers, and let the chips fall where they may for Al in the cab.
But it never even occurred to me that, with their superior speed/maneuverability + inferior mass they'd ever let me make contact. Hope I'm wrong...
More worried about the gun.
Going for the engine could leave the train coasting to an eventual halt.
But spraying the cab might be the more emotionally satisfying choice for them.
Should that happen, I assumed there'd be a massive penalty on the ranged defense if I stayed at the wheel, so have tried to hedge my bets with a badass soak bonus…
Maybe dodging the train will throw off their aim.
And maybe a genie will show up and grant Al three wishes.
I guess we'll see what happens.
And Lusis - love the idea of your M23 giving the pilot something else to think about!