I know. I'm worried about the same things for the Seattle test drive. I wonder if they're going to use part of an airfield or maybe a local track.
Also, just to satisfy my curiosity, someone should describe what it' like to floor it at hit the 75 mph cap they introduced. I wonder if it will let the speed go over, but let the power applied fall off so that it coasts back down to 75, or if the acceleration will decrease before you get to 75, so that you level off smoothly, or, if unfortunately, it sort of suddenly "stops" at 75, which would give you a jerky feeling.