You must chill! I have hidden your Firebird keys!!! CHILL!!!

[wolfie]

The one they always seem to use in the movies is the Distributor cap... not sure of it myself as I don't know cars well enough.

Rotor would be much better - pop off the cap, take out the rotor, put the cap back on. Without taking the cap off, you can't see that something's wrong. Also, if you remove the distributor cap, you have to make sure the plug wires go back in the proper positions when you re-install it (not necessary to disconnect them when popping it off to remove the rotor).

Having said that, it's an obsolescent means of disabling a car. Too many cars nowadays have distributorless ignition (mine does, and it's old enough to get a driver's license of its own). What this means is that, rather than a single coil, with a distributor to send the spark to the proper plug, it'll have either one coil per cylinder, or one coil per pair of cylinders (sparks both the "firing" cylinder, and the one finishing the exhaust stroke - wasted spark, but has no effect), with a solid-state circuit firing the appropriate coil.