Self-driving trucks tested in Japan, form a close-knit convoy for fuel savings

As Google and others ramp up their plans to develop self-driving cars, one government-funded corporation in Japan is already making headway with autonomous heavy duty trucks. In order to save fuel, the New Energy and Industrial Technology Development Organization (NEDO) has programmed a convoy of four trucks to drive just four meters (about 13 feet) apart. That cuts down on air resistance, reducing drag (and thus improving fuel efficiency) similar to drafting with a race car.