UK-based E2V has created a system called RF Safe-Stop, which can remotely shut down a car’s engine using radio frequency pulses to “confuse” a vehicle’s electronic systems, cutting off the engine.
The system is still in early stages of development, but can already stop a car at a range of up to 50 metres (164 feet), using L- and S-band radio frequencies to safely stop cars and motorcycles.
The system can work also on other types of vehicles, like boats in case there are enough “electronics”. The RF Safe-Stop will not work on older vehicles with simple ignition and engines with very little or no electronics at all.
The system is obviously meant for law enforcements and military.