Suicide Alley, the "Pacheco Pass" road.
..or one of a number of those. Notorious for lots of head-ons; often with trucks. Prolly worse with the new crop of cluless idiots in UAVs, playing out Tee Vee ads for their $40K truck, still wet-behind-ears / imagining invincibility came with the expen$ive ignition key.
Flying down that, in fog, and WITH PASSENGERS, just to feed the testosterone monkey? strikes me as fucking Stupid er somewhat unwise. No chauffer gig fer you. Yer lucky your (screaming ... intelligent) hostages didn't eliminate you on the first decent straight part, where they might grab the wheel.
(No local jury would have convicted them ;-)
'Course too, maybe ya gots Yeti genes -?- so a steering column through the chest wouldn't do it..