time to put up or shut up, internet Owners can buy kits to add accessories and features to the Slate Truck. Slate Auto is a new American EV startup. Credit: Slate Auto Slate Auto is a new American EV startup. Credit: Slate Auto In one of the strangest launches we’ve seen in a while, Slate Auto, the reportedly Jeff Bezos-backed electric vehicle startup, unveiled its first EV, the Slate Truck. Notably, the vehicle is capable of a claimed 150 miles (241 km) of range at a starting price of less than...