The Bentley concept illustrates better than words what happens when shared-platform imperatives so-called hard points such as the size of an engine or height of a seat or dimensions of a gas tank are the primary drivers of design.

WSJ: At the Geneva Motor Show, the Promise and Perils of Sharing | Rumble Seat by Dan Neil

"It isn't worth squat to have the fastest car at the racetrack if there ain't any gas in the tank and that's why the work that Ready for Hillary PAC is doing is absolutely critical, " Carville said.

WSJ: Hillary Clinton's every public move generates buzz