towing with a Tesla

We tow a 21' Little Guy Max teardrop trailer with our Tesla Model YP. The trailer loaded is a little over the 3500 LB. tow rating. I have to say I love everything about this car, the best vehicle I have ever owned. Well, everything but one thing. The range! Towing on the interstate at 65 MPH we're lucky to get 100 miles on a full charge. But, the vast majority of our trips are weekend camping within two hours of the house. Maybe one stop at a supercharger and then charge at the campground. Also, I need to change my RV sig.