[Andy at Ross-Tech.com]

Think that @Andy at Ross-Tech.com mentioned in a thread somewhere that he compared parts on a AWD VIN. Maybe he can check if that AWD uses the same rotor and caliper part numbers.

Then again, if you checked it already, my suspicion that it is all marketing fuzz might be true after all.

I compared PartsLink24 for an AWD Pro S at a NJ dealer vs my RWD 1st edition:

AWD
1EA 615 123 B Brake caliper housing left
1EA 615 124 B Brake caliper housing right
1EA 615 301 B Brake disc (vented) 358X30

RWD 1st Ed
1EA 615 123 B Brake caliper housing left
1EA 615 124 B Brake caliper housing right
1EA 615 301 B Brake disc (vented) 358X30

Identical.

 

[Andy at Ross-Tech.com]

FYI, Alltrack 18" wheels fit: Spare tire

 

[Andy at Ross-Tech.com]

Nice! Also the EA in Binghamton looks to be open as of today! PlugShare - Find Electric Vehicle Charging Locations Near You

Free EA charging for any of your ID.4 customers. 😬