1) Sixtyish man, scruffy gray hair, ray-ban sunglasses, driving van. Bumper sticker: FUNK AS PUCK.
2) Thirtysomething woman with spiky hair and thick glasses, driving beat-up old pickup truck. Two bumperstickers: THIS CHICK HAULS ASS and MISKATONIC UNIVERSITY: GO PODS!
3) Old Ford Falcon or similar vehicle driven by wacky woman with dyed red hair and huge glasses, indeterminate age. License plate close to KRZY KAT. Tie hanging out of trunk.