Declasse's 3600LX updates the Granger formula to the 2015 to 2020 Chevrolet Suburban era. It appeared in GTA 6's first trailer, and the files keep the eight-seat layout with all-wheel drive and four gears at 2,100 kg. It should drive much like its older sibling: big, stable and hard to argue with in traffic.
Rockstar has not said how the 3600LX is obtained. As the newer of the two confirmed Grangers it could plausibly be common traffic or a purchase, and there is no evidence yet either way.
It was identified in the first GTA 6 trailer.
The community companion for Grand Theft Auto VI. Database, maps, guides and tools for Vice City and the state of Leonida.