Normally a fan of anything that would keep my car from getting jacked, this new technology gives me pause. Japanese engineers have designed a high-tech car seat using a series of 360 pressure sensors to make an imprint of your butt and — much like a fingerprint scanner — it uses this data to distinguish an owner from a thief.

Last year Peugeot launched the fifth edition of its annual design contest, this time asking creative types around the world to "Imagine the Peugeot in the worldwide megalopolis of tomorrow." Many interesting entries were shown off, but the ultimate winner...