Which American president drove a gangster car?

In 1933 American president Franklin Roosevelt visited Chicago. During his trip his car was shot several time, the president himself wasn't harmed however the major of the city had a severe wound. After that incident the President Defense agency started to look for a bullet proof car that could protect the president in case of another attack. The bodyguards proposed to use the car of Al Capone that was confiscated from him two years earlier. It was a bullet proof cadillac with a built in machine gun on the back sit.

SOURCE: http://www.vokrugsveta.ru/telegraph/technics/1108/

IMAGE: http://www.flickr.com/photos/39911172@N08/4407130849/