Yesterday was the first day of the MX tour in the Los Angeles area and there were 7 of them available for test drives for those with orders who have not yet configured. The biggest surprise for me was how much higher off the ground the seat is. I measured a 8-9 inch difference between the Model S and Model X (ground to "butt" seating area). Second biggest surprise was how much more pleasant the view is from the second row seats due to the larger windshield.