From an Associated Press account of today’s announcement.

Opening the tour, Romney gave a speech to hundreds of supporters at the sprawling Henry Ford Museum outside of Detroit, the automotive capital and a site chosen for its emphasis on ingenuity that changed the nation.
Juxtaposing the present with the past, Romney stood on stage at a podium before an American Motors Corp. Rambler from yesteryear and a Ford Escape Hybrid in the airport-hangar-like Henry Ford Museum, as he invoked the memory of his late father. A Michigan governor in the 1960s and an AMC chief executive, George Romney made a short-lived attempt at the presidency four decades ago.

Okay, fine. But what about Henry Ford’s DC-3?