A Suicide Lincoln is an automobile made by the Ford Motor Corporation which has doors that open away from each other.

Many early cars were made with this door arrangement, and the "Suicide" part of the name comes from the fact that it was pretty much a suicide attempt when emerging from the rear doors, as oncomming traffic would certainly rip them right off!

But, a picture is always worth a thousand words, so here's a set of Suicide Doors in action:

[ Suicide Doors, opened ] Personally, I'm a convertible fan, but top or not, it's the doors that make a car a "suicide."