Merlin, I am an Energica fan myself, but one thing to consider, the E bikes are heavy, especially the ones with some balls behind them. Batteries are not light and a motor that power dense is not a tin can either. Into a back of a pickup w/o help might be a dangerous feat if you were to tip it halfway up a ramp. Id stick with a trailer or another type of hitching system.
Another option to keep an open mind on is, history. How many times is a bike being recalled over battery issues, this, that and other serious things like that. Yes Yes I know ANYone can have problems, but some seem to be having a lot more problems than others are.
Id take a serious look thru this forum, and other places online and see what a bike / a manufacturers general past history is like. If a bike is constantly in the shop or needing it's battery changed out because of a defect for the nth teenth time... do you want to deal with that really? For me at least, reliability is a BIG issue.
Aaron