I had my Ioniq 5 tinted with Llumar FormulaOne Stratos with 70% on rear windows, sunroof, and windshield. The front side windows are with 15% to match as closely with the factory tint. I can confirm the tint does not affect the HUD. I can see fine when driving at night. Also, there is no change in the sensors. Another brand option I was considering was Xpel XR Plus.