If the folks at Japan's Advanced Institute of Industrial Technology have their way, providing car security will be as simple as reading contours on the driver's rear.

Which, it turns out, isn't simple at all. The anti-theft device that these possibly mad-scientists have developed -- which scans the backside of whomever has just plopped down in the driver's seat and only allows the car to start if it belongs to one of the vehicle's owners -- uses 360 sensors to do its thing.

The claim is that the seat-embedded "butt scan" is less intrusive than fingerprint or iris scan technology, and that it works 98% of the time. We wonder if the 2% of the time it doesn't work can be attributed to weight fluctuations or possibly Kardashian-like derriere anomalies.

[via Gawker]