Extras: Power sliding moonroof, rear sonar system, Bose Premium Audio System, Memory System, drivers seat power lumbar support, power tilt, aluminum alloy wheels with all season tires, sport-tuned suspension, viscous limited-slip differential, sport front fascia, Infiniti hard drive nav system, XM NavTraffic, Zagat survey restaurant reviews, DVD-video playback, Infiniti Voice Recognition.

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But scientific studies have taken things one step further and shown that as cab drivers hone their skills, their hippocampus -- the part of the brain that deals with spatial memory and navigation -- gradually gets bigger.

CNN: Make your 'rainy brain' sunnier

Eventually, when processors and memory are cheap enough, these 3-D cityscapes will make it onto in-car navigation systems, helping drivers understand their locations by displaying landmarks around them.

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