I finally got around to figuring out how much it costs to charge Mac.
I drove to work and back with a little trip during lunch. I drove a total of 50 miles, and used 51% of the Pac. It took 15 Kw to charge him back up according to my kilowatt meter. With my rates that came to about $1.21 for 50 miles.
The range actually looked good as well but I still do not know where the Pac runs out. If it runs out at 10% left that is not good. One of these days I will have to run it down and see where the bottom is.