The FM layout, standing for "front-midships", is a layout of an automobile that places the engine in the front like an FR car, but pushed back enough that the engine's center of gravity is to the rear of the front axle.
The FM layout is a layout of an automobile. This automobile places the engine in the front like an FR car. The engine's center of gravity is to the rear of the front axle. This automobile pushed back enough this. The FM layout is standing for "front-midships".