Kinda dangerous don't you think? Are you in Siberia or something? I saw a program where they wrapped a sock around a long pole and dipped it in kerosene or similar and went from wheel to wheel heating the brake calipers before setting out, to keep them from freezing up.
The diesel engines were left running 24/7 all winter long (ouch!)

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!