M54 or M-54 may be: Roads: M54 motorway, a motorway in England also known as the Telford Motorway M-54, a state highway in Michigan Vehicles: BMW M54, a 2000 automobile engine M54, a heavy truck used by the United States armed forces Astronomy: Messier 54 (M54), a globular cluster in the constellation Sagittarius… (More on M54)