I added a couple other choices to your first question, I hadn't considered any of those options so I figured in the least there should be an option that selects that.
Unfortunately for me I drive a lot for business, and its my own business so I have to expense myself! I drive the Lexus really only for work now, we drive the Prius on the weekends and on trips. I've also considered switching cars with my fiance because she doesn't drive nearly as much as I do (she drives maybe 4 miles a day. I drive a minimum of 35, and thats if I only drive to the office and back, usually its more like 50). But she doesn't want to do that because she loves her Prius...and I don't want to do that because I don't like driving it...
Its a real conundrum. I can't drive any less...