Those of you stuck in the arctic wasteland that is the East Coast and parts of the Mid-West right now have probably had a few hypothermia-induced fantasies about how to clear out the snow in front of your car. However, that flamethrower rig you've been concocting won't work. Allow XKCD to explain.
Every Monday morning, I wake up, come to work, turn my computer on, and ponder the same question. "Sure, I'd like to enter the Daytona 500, but I'd want to get it over with really quickly because it's Monday and I have Things To Do. How fast could I do it before I die a horrific, debilitating death?"
It's technically impossible to map a car's worth of Lucas wiring (the smoke canister is never in the same place twice), but that hasn't stopped XKCD from trying. With this attention to detail, it's amazing the British car industry failed.