If you've ever been to London, you'll know that taxi passengers in England's capital get to ride in a fabulous purpose-built vehicle. Here in New York City we had something similar until the demise of the Checker some 25 years ago, but today Nissan unveiled a new high-tech yellow cab that will hit the streets of the Big Apple next year.

The idea of your car being able to read your brain to decide whether you're about to dose off or just need a little driving assistance could become a reality. Nissan's doing research to create a smarter car — one that predicts what you might do next when you're behind the wheel. Hell yeah!

Air conditioners that spray air-purifying, skin-moisturizing vitamin C? Check. Heated chairs that use NASA research to offer better blood circulation for the driver? Yep! "Friendly" speedometers? Okay, what does that even mean?

Nissan's new concept design for a personal mobility device sure is, well, interesting. It looks like a pair of roller skates connected to ski poles, and it supposedly lifts your feet and walks for you, like automated stilts. Sure it...