Buffy all but tugged him into the back seat with her, fussing with the blanket and trying to stay calm. What had worked last time? She had the benefit of hindsight, but the First wasn't doing this. It was just William trying to come to terms with Spike.
She mouthed a thank you to Giles and held Spike's hand under the blanket. They should have an easy time getting him to a dark room now.
See, even thinking that was a risk when you were a Slayer. A hellmouth was going to open right under the car.