Passenger electric cars get all the press, especially when someone launches one into space. But something important is going on in the world of commercial vehicles as well. Last year Tesla announced it would produce an electric long-haul big rig. PepsiCo, Walmart, and UPS promptly committed to buying a few hundred. More recently, UPS made an important announcement about its plans to roll out 50 new midsize electric delivery trucks in Atlanta, Dallas, and Los Angeles.