GTA: Chinatown Wars on 3DS Grand Theft Auto: Chinatown Wars was originally built as a Nintendo DS exclusive and was never officially released with "exclusive" QR code content for the 3DS.
This feature was exclusive to the Nintendo 3DS version. It never appeared on: gta chinatown wars 3ds qr code exclusive
Before diving into the codes, it is crucial to understand why the 3DS version is unique. Unlike the DS original (which used the GBA slot for unlockables) and the mobile ports (which used in-app purchases), the 3DS version uses the System Camera. GTA: Chinatown Wars on 3DS Grand Theft Auto:
There is no official "3DS-exclusive" version of Grand Theft Auto: Chinatown Wars Evidence: No authoritative sources
While any standard vehicle could be shared, the community discovered that QR codes could bypass normal progression: