Has the Marquis been seen in GTA 6?
Shown, not statedYes — in Trailer 1 at 0:31 and 0:36, in Rockstar’s own promotional material, and in Trailer 2 at 0:21.
Marquis seen in Leonida waters during Vice Beach trailer shots (Trailer 1 at 0:31). Marquis appears again in Leonida waters in first trailer (Trailer 1 at 0:36). Marquis shown in Vice City and Leonida Keys postcard imagery (Rockstar’s own promotional material). Marquis stored on land next to Jason's stilt house (Trailer 2 at 0:21). Marquis visible in Port Gellhorn postcard on promotional website. These are identifications made from Rockstar’s own footage — Rockstar has not named the vehicle in any of them.
Still open — Whether it can be driven, bought or modified — none of that shows in a frame.
Is the Marquis at Jason’s house in GTA 6?
Shown, not statedA Marquis sits on land beside Jason’s stilt house in Trailer 2, at 0:21 — and sails the Leonida waters twice in Trailer 1.
GTA Wiki finds the sailboat in Trailer 1 at 0:31 and 0:36, in the Vice City and Leonida Keys postcards on Rockstar’s site, and stored next to Jason Duval’s stilt house in the Keys at 0:21 of Trailer 2, as well as in the Port Gellhorn postcard. GTA 6 Intel logs it at 0:36 in the overhead shot of the Keys.
Still open — Whether the boat by the stilt house is Jason’s, or just there.
Jason DuvalHas the Marquis been in GTA before?
StatedIn almost every 3D and HD game since Vice City — and in GTA 5 and GTA Online it was sold at DockTease for $413,990.
GTA Wiki lists it in Vice City, San Andreas, Vice City Stories, GTA 4, The Lost and Damned, GTA 5 and GTA Online; GTA 6 Intel agrees and describes it as one of the slowest boats, with a motor for when the wind drops. The DockTease price is GTA Wiki’s and GTA Intel’s.
Still open — Whether GTA 6 keeps it as a boat you can sail.
Has the Marquis been in earlier GTA games?
StatedYes — GTA: Vice City, GTA: San Andreas, GTA: Vice City Stories, GTA IV, GTA V and GTA Online.
The name returns from Rockstar’s earlier releases, which GTA Wiki lists for it. What carries over is the name and the maker; whether GTA 6’s model drives or costs the same is not known.
Still open — Whether anything beyond the name and the look carries over.
How much does the Marquis cost in GTA 6?
Nobody has saidNot announced. The same boat costs $413,990 in GTA Online.
Rockstar has published no GTA 6 vehicle prices. $413,990 is the price in GTA Online, the previous game, as GTA Wiki records it; nothing says GTA 6 will keep it.
Still open — The GTA 6 price, and whether it can be bought at all rather than taken.
