The original NSX GT3 had entered competition in 2017 and shown strong pace across the IMSA SportsCar Championship and Super GT GT300 class. For 2019, Honda — working in collaboration with JAS Motorsport in Europe, Honda Performance Development in North America, and Mugen (M-TEC) in Japan — developed the Evo upgrade package. Principal changes included revised aerodynamic bodywork for improved downforce and cooling efficiency, and new turbochargers that extracted greater performance from the twin-turbocharged 3.5-litre V6 engine that was carried over from the road car in near-production specification.
The NSX GT3 Evo retained the same fundamental architecture as its predecessor: a rear mid-engine layout, rear-wheel drive, and a GT3-specification roll cage, with the hybrid drivetrain of the road car removed to comply with GT3 regulations.
The NSX GT3 Evo's debut season was one of the most successful for any GT3 car in a single year. In the IMSA SportsCar Championship GTD class, it won both the drivers' and teams' titles. Simultaneously, in Japan's Super GT Series GT300 class, the Evo claimed the drivers' and teams' championships. In SRO competition, the car won the Pro-Am drivers' and teams' titles in the GT World Challenge America.
Further international results included an overall top-six finish at the 2019 24 Hours of Spa in the Intercontinental GT Challenge, and the 2019 Blancpain GT Sports Club title. Race wins were also recorded in the Italian GT Championship and International GT Open during the year.
The NSX GT3 Evo successfully defended its IMSA SportsCar Championship GTD crowns in 2020, winning back-to-back drivers', teams', and manufacturers' championships — a sustained run of dominance in the class. In SRO's GT World Challenge America, the Evo elevated its results further, sweeping the overall manufacturers', drivers', and teams' titles (across all classes) in 2020, having taken Pro-Am class honours in 2019. In the Intercontinental GT Challenge, the car scored two pole positions and a podium at the 2020 Indianapolis 8 Hours, and led the 2020 Kyalami 9 Hours convincingly before heavy rain reshuffled the running order in the final hour.
For 2022, Honda and JAS Motorsport introduced a further evolution, the NSX GT3 Evo22, with upgraded intercoolers, retuned suspension, new wheel specifications, FIA-mandated rain lights, and an air conditioning system. The Evo22 won the 2022 Petit Le Mans outright among GT entries with Gradient Racing, and the 2022 GT World Challenge America Pro-Am championship with Racers Edge Motorsports drivers Mario Farnbacher and Ashton Harrison. Honda ended its factory support for the NSX GT3 programme at the close of 2024, after which JAS Motorsport continued to support existing customer cars in Europe. In 2025, JAS and Nova Race produced a national-homologation Evo25 variant for the Italian GT Championship.
The turbochargers developed for the NSX GT3 Evo were subsequently adapted for the NSX Type S road car, announced in August 2021 as the final production variant of the second-generation NSX. Honda stated the Type S borrowed the Evo's turbocharger specification as part of the package that lifted the road car's combined system output from 573 hp to 602 hp. This direct transfer from race car to road car was an unusual instance of motorsport hardware influencing a production model's specification.
The NSX GT3 Evo stands as the highest-achieving version of the NSX GT3 family, accumulating simultaneous championship titles across two continents in its debut season and sustaining IMSA title success into 2020. Its technical development also fed back directly into the road car, completing an unusually tight loop between racing and production for a manufacturer-supported GT3 programme.
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