EV crates are suddenly all the rage. These kits contain packaged electric motor components designed to let you upgrade/convert your old gas guzzler to a sleek new electric vehicle. Swindon Powertrain got a head start earlier with its PowerTrain set up, and the Revolt guys will happily drop a Tesla EV crate system into your cherished classic car – for a price! These kits come with a variety of options included, including full transmissions and stuff, and typically batteries are…