Cary in sales might know some one by now, he'd be your best resource for this. What EV are you looking it? I know that there are some draconian limitations on some which will pretty much void your warranty then there are the other extreme which embrace it. Which I find interesting becuase those same cars (I'm thinking Tesla Model 3) do tow in the EU.
From what I have been told, it makes a significant hit on economy. Personally, with the 'fragility' of batteries (they don't like fast charges or full charges, nor heavy loads) I'm personally of the mindset that internal combusion is the way to go. The thought of an $60,000 repair bill in a few years leaves a bitter taste in my mouth.
Not to mention, the shorter range and charge times if you are a long distance touring mindset. FWIW, I have also heard of campgrounds getting really upset if you plug into the power poles for recharging...Their 'sites' are usually pretty overloaded anyway. I know I've seen voltages at 104 at the pole --- this is very dangerous for rvs.
I know on my Rav4 Hybrid, there is a small 12 volt battery that is used essentailly to 'boot' the rest of the electrical system on startup. I have the CTEK onboard charge controler that acts as a battery isolator and solar controller. A worthwhile purchase to be sure.
