I tried a bunch of option combinations but could not get Nav without the vista roof. Guess I could get it without nav and have the dealer add it later, which is how I ended up at this thread, but I would rather not go that route. Nothing against those that like the vista roof, it's obviously popular, just don't like the added cost, weight, potential failure points (wind noise, rattles, leaks etc) to have something I won't use. My current car of 9 years has a moon roof that has been opened probably 10 times (including the sun shade).