More like tracking when you try to make a warranty claim. Why else would they want to know it. Subaru only gives them to new WRX owners not any of the other vehilces they make, so they know what type of car you have. Also under where it explains how Subaru designed and built their vehicles for normal driving conditions and how the warranty excludes any damage or failure resulting from racing... etc., you have to sign where it says basically that you agree and apply anyway.