>> reporter: that essentially is like a big tesla? >> basically, yes. a bigger tesla. >> reporter: amazon is pledging to be net carbon zero by 2040. thousands of these custom-built rivian vans are already driving in and out of neighborhoods, delivering packages in 100 cities nationwide. so this is the full 360 view of the vehicle, the front, back and both sides. >> reporter: the electrics easily recognizable by the l.e.d. lights and the electric blue trim around the door. amazon is starting with their last mile delivery vans. eventually they want to expand across much of the fleet. >> we think...