Hello.
Just measured my car’s clearance - typical for an electric vehicle, the underside is pretty sleek. Using the "raise-lower" buttons in the MMI system, you can adjust the height. At max height, it’s 6-3/8", but it soon drops to 5". The manual says it might lower more at higher speeds for efficiency, though I can’t verify that. One downside is it quickly returns to 5", so watch out for curbs to avoid scraping the plastic spoiler. Everything seems consistent across the chassis. Hope this helps!