[youtube]http://www.youtube.com/watch?v=ZFrze9eY9o0[/youtube]
One spotted in Russia using the "vanishing" plate method (Live Leak, can't embed):
http://www.liveleak.com/view?i=4e4_1383044792" onclick="window.open(this.href);return false;
Just interesting
Of course, the RFID chips found in most tires these days will make hiding your vehicle a little more difficult than most people realize:
Most CARS have secret RFIDs in the Tires !
Goodyear Embeds RFID in tires
Michellin Embeds RFID Chips in Tires
[youtube]http://www.youtube.com/watch?v=JCwWVxGtYgE[/youtube]
"EZ Pass" is actually tracking your car well off the toll road as well, just interesting.