A reader just sent in this photo of what appears to be the “coolest security alarm ever” for your car. It basically consists of a giant Tesla Coil mounted atop the car’s roof, emitting an electrical forcefield to fend off would-be thieves.

A reader just sent in this photo of what appears to be the “coolest security alarm ever” for your car. It basically consists of a giant Tesla Coil mounted atop the car’s roof, emitting an electrical forcefield to fend off would-be thieves.