Developed by Aston Martin Racing and homologated for FIA GT3 regulations, the V8 Vantage GT3 is powered by a 4.0-litre Mercedes-AMG twin-turbocharged V8 producing 542 PS (535 hp) and 700 Nm of torque. Dry weight sits at 1,245 kg, managed through an Xtrac 6-speed sequential gearbox, Öhlins four-way adjustable dampers, Alcon motorsport brakes with Bosch ABS, and an Alcon multi-plate clutch. The complete package was purpose-engineered for customer teams rather than a full works operation, with Aston Martin Racing providing technical support globally.
The GT3 homologation class — governed by the SRO Motorsports Group's Balance of Performance system — places the car on the same grid as Ferrari, Porsche, Mercedes-AMG, and Lamborghini machinery. Customer programmes have run through Aston Martin specialists including TF Sport in Europe and the Heart of Racing squad in IMSA's GTD and GTD Pro classes, where the car has been a consistent front-runner since the 2019 season.
An evolution kit extending the car's competitive life became available when the full Vantage GT3 Evo — based on the 2025-model-year road car — was unveiled in February 2024, allowing existing 2019-spec customers to update their chassis to new aerodynamic and mechanical standards without a complete replacement.
The V8 Vantage GT3 marks a pivotal transition in Aston Martin's customer racing identity. For over a decade, the brand's GT3 cars were defined by the naturally-aspirated 6.0-litre V12 — a unit that gave them an unmistakable character on circuit. The switch to a 4.0-litre twin-turbo unit brought the car into line with the broader industry pivot toward smaller, force-inducted engines that deliver competitive BOP figures while meeting modern packaging demands.
For sim racers, this generation is the reference Aston Martin GT3 machine: the car that Heart of Racing, TF Sport, and multiple SRO GT World Challenge teams race on real circuits from Road Atlanta to Silverstone. Its clean GT3 specification — standardised safety cell, controlled aerodynamic envelope, BOP-adjusted power — translates directly into class-based grid racing in titles including [[forza-motorsport-2023|Forza Motorsport (2023)]].
The V8 Vantage GT3 also kept [[aston-martin-racing|Aston Martin Racing]] visible in global GT competition during the manufacturer's most significant period of expansion — the return to Formula 1 as a works constructor — sustaining the brand's presence in endurance and sprint GT racing while the works programme scaled up.
The Aston Martin V8 Vantage GT3 appears in [[forza-motorsport-2023|Forza Motorsport (2023)]] as a GT3-class car. Its homologation specification maps directly onto Forza's class structure, where it competes against the BMW, Audi, Porsche, and Ferrari GT3 machinery it lines up against in real-world IMSA and SRO rounds.
[[aston-martin-vantage|Aston Martin Vantage]] — the road car platform underpinning the GT3
[[aston-martin-vantage-v12-gt3|Aston Martin Vantage V12 GT3]] — the naturally-aspirated predecessor this car succeeded
[[aston-martin-vantage-gt3-evo|Aston Martin Vantage GT3 Evo]] — the updated 2024-generation car that replaced this variant
[[aston-martin-racing|Aston Martin Racing]] — the factory motorsport arm behind the customer GT3 programme
[[imsa-weathertech-sportscar-championship|IMSA WeatherTech Sportscar Championship]] — primary North American series for the GT3
[[gt-world-challenge-europe|GT World Challenge Europe]] — the SRO-run European series where the car competed
[[forza-motorsport-2023|Forza Motorsport (2023)]] — the game where this GT3 generation appears
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