Eight seats, according to the game files, make the Declasse Granger one of the roomiest vehicles confirmed for GTA 6. It is the series' Chevrolet Suburban, a fixture of motorcades and airport runs since GTA V, where it also wore FIB and Sheriff liveries. Trailer 2 shows the civilian version. Expect bulk, all-wheel drive and a total lack of drama.
No acquisition details yet. Full-size SUVs have been everyday traffic in past games, so finding one on the street seems likely, and government variants would presumably be harder to keep. Treat this as informed guessing.
The civilian Granger was confirmed in Trailer 2.
The community companion for Grand Theft Auto VI. Database, maps, guides and tools for Vice City and the state of Leonida.