Apparently butt prints left on car seats are like finger prints. A new company is hoping to use pressure sensors built into car seats to help detect when a car is being driven by an unauthorized person. The seats will use 360 sensors to measure a person's butt in order to confirm their identity. TechCruch says that "according to its makers, the system was able to identify drivers with 98% accuracy during experiments...The research team now aims at working together with car companies to commercialize the technology as effective anti-theft systems in two to three years."
How does it know if a new butt imprint is coming from a friend of the vehicle owner who is borrowing the car or from a criminal stealing the car? What happens if you pack on some holiday weight? Smart people are likely working on these issues right now.