In addition to a stack of brochures or the hand-out cards we've seen here, I recently acquired one more aid to assist in showing the car. I get more questions and requests about the battery than any other topic. On Bonnie's suggestion in another thread, I logged into good old eBay and picked up a couple of Panasonic 18650A cells that I keep in the glove box. Then, when I'm asked about the battery, I can show them the off-the-shelf components that go into the battery pack. I've found these two cells to be more practical than any other aid in describing what goes into the car... 7,104 of these cells (85 kWh).