Brain Game: Cal's Free Wheels

Calvin's father owned a used car lot, and he promised the 22-year-old college student that he'd give him one of the best cars in his lot upon graduation, as long as he could prove that he'd learned something. Knowing that Cal had trouble with logic (and had failed a statistics class the first time around), his dad decided to give the young man a true challenge. He'd provide some clues to the vehicles he considered, and then give Calvin a choice between two cars. If he chose correctly, he'd receive that car as a gift. If not, he'd have to leave college on foot. As Cal and his father left the Wossamatta U. graduation ceremony and ambled their way to the parking lot, the elder man prompted him:

"I'd buy you a Camaro, but not a Mustang.
I'd buy you a Tundra, but not a Ram.
I'd buy you a Miata, but not a Cherokee.
I'd buy you a Focus, but not a Civic."

Then, Cal pointed to two vehicles in
the parking lot: a Continental and a Crossfire.

"Which one do you choose?" he asked.

Calvin answered correctly, and happily drove away.
Which car did he choose, and how did he know?