It is important to clarify that "QR codes" in the context of GTA: Chinatown Wars are typically not used for instant unlocking of vehicles like in modern Animal Crossing games. Instead, the game’s "Social Club" functionality was designed to work through connecting the DS to Nintendo Wi-Fi and the Rockstar Social Club website.
is a DS title, it behaves differently than 3DS-native games: Nintendo GTA: CHINATOWN WARS (DS) - Electronics gta chinatown wars 3ds qr code 2021 link
If you're looking for more information or resources on GTA: Chinatown Wars, here are some additional resources: It is important to clarify that "QR codes"
If you're looking to download Grand Theft Auto: Chinatown Wars on your Nintendo 3DS in 2021, you can use the following QR code link: gta chinatown wars 3ds qr code 2021 link
Make sure you have a Nintendo eShop account and sufficient funds to purchase the game.