Declasse Sirius in GTA 6
Confirmed Updated 2026-10-19
The Declasse Sirius is a muscle car in Grand Theft Auto VI, made by the in-game brand Declasse (GTA's version of Chevrolet / Oldsmobile). Its design is based on the Mercury Cougar (1970). Visible in official screenshots published by Rockstar Games.
| Manufacturer | Declasse |
|---|---|
| Class | Muscle Cars |
| Based on | Mercury Cougar (1970) |
| Status | Confirmed |
| First seen | Official screenshots |
| In GTA V / Online | Not that we know of |
| Edition | Standard |
| Top speed | After launch |
| Price | After launch |
What real car is the Declasse Sirius based on?
The Declasse Sirius takes its design from the Mercury Cougar (1970). Like every Grand Theft Auto game, GTA 6 uses parody brands instead of licensed manufacturers: Declasse is the series stand-in for Chevrolet / Oldsmobile. See the full list of GTA 6 cars and their real-life counterparts.
Where was the Declasse Sirius seen?
Visible in official screenshots published by Rockstar Games.
Declasse Sirius stats, price and location
Not known yet. Rockstar has not published stats; we will add it after launch on November 19, 2026.
About Declasse
Declasse is the Chevrolet of GTA, and one of the biggest brands in GTA 6. It covers classic muscle (Sabre Turbo, Tulip, Stallion), lowriders (Impaler), SUVs (Granger) and vans. See all 12 Declasse vehicles in GTA 6.
Similar vehicles
Frequently asked questions
What real car is the Declasse Sirius in GTA 6?
The Declasse Sirius is based on the Mercury Cougar (1970). Rockstar does not license real car brands, so GTA vehicles mix styling cues from one or more real models under parody names.
Is the Declasse Sirius confirmed for GTA 6?
Yes. Visible in official screenshots published by Rockstar Games.
How fast is the Declasse Sirius in GTA 6?
Top speed is not known yet. GTA 6 launches on November 19, 2026 for PS5 and Xbox Series X|S, and we will test the Declasse Sirius after release.