DRIVERLESS CAR
Solar panel on roof powers the three onboard computers.
Electric car recharges once a day, plus overnight.
Stereoscopic cameras stitch a 180 degree panoramic 3D view of the road ahead.
Software uses the video footage to auto-detect road markings, cars, pedestrians, moving objects. 
Plus GPS Satelite technology.

Follow this link to read more.
http://spectrum.ieee.org/automaton/robotics/robotics-software/autonomous-vehicle-driving-from-italy-to-china