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.

XKCD issue #562 depicts a scene dear to everyone’s heart who has ever witnessed a moron fail egregiously at parking. Let’s advance the idea and move from blowtorches to rotary cannons.