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) speculative CHP Drone Squad includes twoand fourwheeled autonomous vehicles. The more conservative5 Subaru (斯巴魯 ) merely imagined a selfdriving car that would work in water. GM (通用汽車公司 ) created a concept that would run on an updated6 version of the Chevrolet Volt39。s hybrid propulsion system (雪弗蘭兩用車推進(jìn)系統(tǒng) ). As one can tell from the concept art gallery, the designs are a bit tongueincheek,_built more for Hollywood t