Did you see the Car and Driver Internet post about the Lightning? It says that the towing will remove around 60% of the range. When I looked around, that is what I believe would be correct. The article says less than 100 mile range expected...
I am enjoying this thread discussion. I own an Airstream 25 dual axle but I ended up ordering a hybrid instead of the Lightning as I do travel longer distances and often get in ridiculous traffic jams (once one five hours!). I cannot do anything about the traffic but I was not comfortable with...