Taking the old ideas of bluetooth wardriving to a whole new playing field, not just "messing" with the phone/stereo etc, but now actually being able to influence the adaptive cruise control, parking systems, engine management and (in the case of [SOME US CITY]) being able to shut the buses down that use Cummings Diesel engines. Basically old dog, new tricks, methodology of bringing mass transit to a standstill etc (let alone annoying heck out of Audi/BMW/Mercedes/Chrysler etc). This is demonstrable, repeatable and can be done easily and discreetly, it's fun, and has both old school (wireless/bluetooth) as well as some engine (petrol heads) stuff. It's capability to influence single vehicle, or if well executed a whole city centre (bus/transit) or greater is an attraction.