Do you need a HUD for distance alert?

[IMAY2023]

2 things.
1. HUD requires special windshield with some sort of special coating I believe.

2. I think there is confusion between distance alert and automatic emergency braking /crash alerts. Distance alert, only available with HUD is a warning that your speed is too aggressive vs AEB warning which is an alert that you are likly toncrash if you dony slam on the brakes. P3 cars had dash leds for AEB, but SPA will just beep and show something on dash. The distance warning is only on HUD and I have mine turned off. Its useless.

2 things.
1. HUD requires special windshield with some sort of special coating I believe.
This is a myth. There is no special  windshield especially for HUD unless if it's a heated windshield.  The heated  windshield has variants with or without HUD.  Variant with HUD one has a certain non-hetaed area with a special layer filter where HUD projects.