Sometimes people just have runs/seasons of buying the same car, I feel.
I live in NYC so don't drive, but I've absolutely had the experience of going to a public transportation station (train, airport, etc.) waiting to be picked up by someone, and to see 8-12 "different" yet identical (one season it was, I guess, "silver" cars, and specifically SUV's) lined up at curbs waiting for people, at which point I, who doesn't see my hosts' cars everyday, was all "...how do these people know whom they're coming to be picked up by, without they don't know their hosts' license plates?"