For the moment, Thor is more of a vehicle customizer than a true manufacturer. It rips the diesel motor and related innards out of an existing vehicle and replaces them with an electric motor and batteries. Thor has focused on doing its own battery-pack research and manufacturing to cram hundreds of small lithium ion batteries into a tight, safe container, and its software engineers write applications that maximize the packs’ charging abilities and life spans. Look around the Thor warehouse, and you’ll see UPS-style trucks and extended-body pickups awaiting modification. The goal, according to Semler, is to work on a one-off basis, customizing clients’ fleets per their specifications    more