I am not sure anyone mentioned this already, but here is a video of why you should get the air suspension. Basically what I did was raised my suspension to the highest level before entering the flooded out road. My car was easily able to make it, but I don't know about other gas cars. You noticed the car in front's exhaust was completely covered by the water. Hopefully the engine has enough pressure to keep the water out and the air intake is high enough to not suck in water. There was a gas car that got stuck. Also notice the tesla auto-pilot ping indicating something wrong with the front radar sensor. It was probably covered. Autopilot still works today so I suspect it is fine. Hopefully Tesla engineering it to be waterproof.