An unnamed muscle car is due to appear in Grand Theft Auto VI, briefly visible behind a donked-out Vapid in Vice City's Stockyard neighborhood in the first trailer. A double checkered-flag emblem on its front fender hints it may belong to the Vapid Dominator lineup, and its quarter glass, windshield, wheels and fender shapes suggest it is based on the first-generation Ford Mustang.
First Trailer Stockyard Shot
At approximately 0:27 in the first Grand Theft Auto VI trailer, the unnamed vehicle appears in Vice City’s Stockyard area. It is positioned behind a raised, donk-style Vapid, leaving only a short look at the muscle-bodied car in the footage.
Its GTA VI appearance is limited to that trailer view. No price, performance information, variant name, customization options, or further promotional appearance has been shown. The vehicle is classified as a muscle car, with a muscle body type, and has been spotted in the Vice City region.
Mustang Cues and Lineage
The design draws from the first-generation Ford Mustang. Its front-side quarter window, windscreen profile, wheel design, and front-fender treatment are the visible features linking it to that generation of Mustang rather than to a later model.
A paired checkered-flag badge can be seen on the front fender. That marking resembles an emblem used by many Vapid Dominator models, so the car may be connected to the Dominator range. This has not been confirmed as its in-game name or manufacturer designation.
Vehicle data via GTA Wiki (Fandom), CC BY-SA 3.0.