"Where to start: glass roof with nowhere to strap stock? Useless. Also going to cook your passengers alive after they have been sunburnt framing gables all day. Pass through idea is interesting....until your first fall sleet storm. Or blizzard. Or arctic blast. Or heat wave. Or any weather incident you would anticipate outside of southern California. Im betting on an intro price of 90k. Not exactly in a contractor's budget. "We just landed on the planet and didn't know what trucks were...and refused to do any research before designing one.""