Warranty concerns duly noted, adding a trailer hitch does interest me. Once the warranty expires, it will be an even more attractive modification. I expect to hit 100k before I hit 8 years. Historically, I have driven about 20k miles per year. With the low cost of operating the Spark EV, I find myself driving even more because it is so wonderfully inexpensive.
One thing I wish that EV's would consider as a standard is supporting trailer use as a means to attach a battery trailer for occasions when extended range or capacity is desired. If the trailer can also haul some things or perhaps even serve as a small camper trailer, even better, especially if charging at RV parks will be part of the travel plan.
My 1968 Cutlass has the gas cap in the center of the rear bumper hidden behind the license plate, which seems like an ideal place to locate a charge port or other battery extension connection, as it would be very close to the trailer hitch. Perhaps not hidden behind the license plate on a moving vehicle, but in a rear center location. Pretty much opposite of how the Leaf has its charge port in the front.
I have seen some EV hobbyists make battery trailers to extend range, as well as the Ebuggy and Nomadic concepts. I can see such a trailer being more practical to rent than own. Such a battery trailer may also be desirable for uses besides extending EV range for various applications where portable power is desired without the noise or emissions of a gas or diesel generator.
