Interesting notes about the M1-A1.
The M1 uses a Turbine engine to achieve it's incredible (for it's weight) top speed. This engine also generates a tremendous amount of heat. (in other words if you are driving behind one don't get to close unless you want the paint stripped from the hood of your car) Many soldiers used this heat during Desert Storm to dry their clothes and to keep warm during the incredibly cold desert nights.

During an inspection of a field exercise being performed by the Georgia National Guard, the Brigade commander of 3rd Infantry Division(Mechanized) noticed a M1 with condensation forming on the main gun barrel. He entered the tank to find the barrel had been stuffed with ice and cans of beer.

These last two examples show the domestic versatility of the M1.