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The BlueS3 Tire was obtainable by reaching level 10 on the police team in OG Season 3. Alongside that you needed to buy it for 10k cash.
Supply is widely distributed — no single holder owns enough to register as a hoarder.
BlueS3's current MU count is at ~149, which is similar to most other rare items (such as Bloxxer Launcher or Circuits), and even lower than some rare items (such as Guitar Riff which is at ~186), despite BlueS3 being at uncommon.