Good thing that bull-dozer was on the other side. Vash was half-way through the window by the time they moved forward again, clinging to the back on the giant driver's seat like it was the only stable piece of equipment around. And it sort of was, with how Len seemed to be steering (if he'd been normal, he'd of dropped his gun at that jerk; instead, he just got an aching side and slipping footholds).
".... Len?"
Cccrrinnnck. The sound made Vash wince, side-stepping it until he was turned to face away from the cockpit, hanging on with one hand. Even if he wanted this machine stopped, he still had to look after snipers and-- ooh, that fence did not look that good. Amazing how it didn't get caught in the wheels, though. The Stampede glanced over his shoulder as the roller plopped down onto an empty street, gaining speed.
"... Len? Ah, how much do you... actually know... about these?