Electric vehicles have more than enough torque to be good at towing, but a big problem is range is dramatically affected when you hook up a trailer. But Colorado Teardrop says it has the answer, with the Boulder camper trailer that actually gets its own built-in battery pack that you can use to charge your EV and thus extend its range.
The concept is pretty simple - you can charge both your electric vehicle and the Boulder camper, drive into the wilderness and then instead of having to rely on a charger to replenish your EV in the middle of nowhere, you can just hook it up to the trailer and it will give you plenty of juice for the return leg of the journey. The Boulder is apparently the first of three range-extending camper trailers currently under development by Colorado Teardrop, and also the smallest.