“Jelly Bean” and “Pearl” could be characters from a children’s book. They aren’t. They both have horns, steering wheels, tires, and, well—you get my drift. They’re car nicknames. “The Gray Goose” and “Big Blue” fall into this category as well. A few years back my friend, Becky, nicknamed her 2000 Dodge Caravan “The Swagga Wagon.”…