The Sheriff SUV is a Declasse law enforcement vehicle, a Granger modified for Sheriff and NOOSE tactical use that served in GTA V and GTA Online and is due to appear in Grand Theft Auto VI. The September 2022 leaks showed two of them chasing Lucia through Hamlet while she rode on the back of a pickup, still wearing Los Santos County Sheriff liveries.
Vehicle data via GTA Wiki (Fandom), CC BY-SA 3.0.