Infernus GT X Z9 Spawn Time in GTA: San Andreas (PS2)? Doesn't Exist – Added in GTA Online 2022

The Infernus GT X Z9 does not exist in GTA: San Andreas. This vehicle appears only in GTA Online (added via the Los Santos Drug Wars update, 2022). The original PS2 San Andreas (2004) has no such model.

You may be confusing it with the standard Infernus (based on Lamborghini Diablo), which spawns in rich areas (Rodeo, Richman) and during export missions.