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GTP

Porsche 963 GTP

After a five-year hiatus from top-level prototype racing, Porsche returned to the discipline in 2023 with the all-new 963 for the IMSA WeatherTech SportsCar Championship's GTP class. Partnering with Multimatic to construct the chassis, the 963 made its racing debut at the 2023 24 Hours of Daytona with Porsche Penske Motorsport, and more teams have begun to adopt the car around the world as the season has continued. Penske's Mathieu Jaminet and Nick Tandy gave the car its first win at Long Beach in its third start of the IMSA season.

Powered by Porsche's 4.6 liter, twin-turbocharged V8, the 9RD engine that powers the 963 makes over 670 horsepower. As with other GTP cars, the car weighs 1,030 kg and features a spec 50kW hybrid system.

Cadillac V-Series.R GTP

The Cadillac V-Series.R is General Motors' latest top-level prototype entry for global sports car competition. Built to the universal Le Mans Daytona h regulations that made their debut for the 2023 season, the V-Series.R was launched in both the IMSA WeatherTech SportsCar Championship with entries from Chip Ganassi Racing and Action Express Racing, and internationally with another Ganassi-run team.

The Cadillac V-Series.R succeeds the Cadillac DPi-V.R, which scored five consecutive 24 Hours of Daytona wins from 2017 to 2021. Powered by a 5.5-liter V8, the V-Series.R has the largest engine of any cars to compete in the GTP class. It was able to score its first IMSA win in the 2023 12 Hours of Sebring with Alexander Sims, Pipo Derani, and Jack Aitken behind the wheel, recovering from an early incident and surviving a race of attrition in IMSA's hotly contested GTP class.

BMW M Hybrid V8

BMW's long-awaited return to the highest ranks of prototype racing comes in 2023, as the German manufacturer teams up with chassis partner Dallara and team partner Rahal Letterman Lanigan Racing to bring the BMW M Hybrid V8 to the IMSA WeatherTech SportsCar Championship. Built to a new set of global prototype regulations, two M Hybrid V8s will compete in IMSA's premier GTP class, but countless more reproductions of the car are set to debut on iRacing before its first racing lap.

Years of coordinated efforts in both North America and Europe to create a unified top-level rule set have allowed top-tier manufacturers to return to the prototype ranks, with BMW becoming one of the first to announce its involvement. The M Hybrid V8 produces approximately 640 horsepower out of its four-liter powerplant alone, with its electric motor able to add even more boost.

P2

Dallara P217

Dallara’s return to prototype racing for the first time since the original Audi R18 TDI, the P217 made its debut in 2017. The car competes in the LMP2 class in both the FIA World Endurance Championship and European Le Mans Series, while a Daytona Prototype International-spec version of the car raced at the top level of the IMSA WeatherTech SportsCar Championship with Cadillac branding until the GTP spec was adopted for 2023.

The LMP2 P217 is powered by a 4.2-liter Gibson V8, and features a six-speed sequential paddle shift transmission by Xtrac. Drivers who raced in the car in its 24 Hours of Le Mans debut included Formula 1 legend Rubens Barrichello, former Le Mans winner Jan Lammers, and IndyCar veteran Mikhail Aleshin. Other Formula 1 veterans who have driven the car at Le Mans include Felipe Nasr, Sergey Sirotkin, and Giedo van der Garde.

P3

Ligier JS P320

Ligier's latest design to compete under global LMP3 regulations, the Ligier JS P320 launched in the summer of 2019. The JS P320 succeeded the JS P3 that had been running since 2015, scoring hundreds of wins and multiple championships across global and international series. It represented major changes from its predecessor in bodywork and suspension, and added traction control and a new, more powerful Nissan V8 engine as part of a new generation of LMP3 regulations.

GT3's

Acura NSX GT3 EVO 22

Building off the successes of the original NSX GT3, which debuted in 2017 and won dozens of races and the IMSA GTD championship, the Acura NSX GT3 EVO 22 made its debut for the 2022 IMSA WeatherTech SportsCar Championship season. It ended its debut season with a checkered flag at the Petit Le Mans for Gradient Racing, who had already given the EVO 22 its first IMSA podium at Long Beach earlier in the year, and it added numerous other victories and championships in other series around the world that same year.

Aston Martin Vantage GT3 EVO

Carrying on a long line of sports cars produced by the iconic British manufacturer, the Aston Martin Vantage GT3 first took to the track in 2019. Its EVO variant was unveiled in 2024, both as a new build and an upgrade kit for the original car. It features significantly revised aerodynamics—especially in the nose area—and suspension from its predecessor. Under the hood, it's powered by a twin-turbo 4.0-liter V8 that can produce up to 600 horsepower depending on regulations.

Audi R8 LMS EVO II GT3

A mainstay of GT3 events around the world for much of the past decade, Audi's R8 LMS received its second upgrade for the 2022 racing season with the introduction of the R8 LMS Evo II. Like its predecessor, the Evo I, the Evo II can either be bought new or as an upgrade kit for a previous generation model. Major improvements to the car included a new aerodynamics package that generated more downforce with the rear wing, a new engine intake system, and four-way adjustable dampers in the suspension.

BMW M4 GT3

Revealed at BMW Sim Live in December 2020, the BMW M4 GT3’s reveal was a bridge between the virtual world and the real one—especially as its steering wheel could be removed from the real car and plugged directly into iRacing. The car received a pre-release on iRacing to give sim racers a taste of what to expect before it began competing in GT3 series around the world, and received updates in-sim to match its final form.

Chevrolet Corvette Z06 GT3.R

Upon the global sunsetting of the GTE spec at the end of the 2023 racing season, Chevrolet's Corvette C8.R would require a successor to be built under GT3 specifications. Enter the Z06 GT3.R, which would also see the brand pivot from a direct factory-backed Corvette Racing program to numerous customer teams-although the same Pratt Miller Motorsports group that led the factory GTE effort remains a key part of the racing efforts.

Ferrari 296 GT3

Ferrari's latest foray into GT3 racing, the 296 GT3 made its debut in the IMSA WeatherTech SportsCar Championship and other major global championships in time for the 2023 season. It succeeds the 488 GT3 EVO that made its debut in 2020, and it was designed to build on that car's successes with easier setup modifications for the crew and significantly more downforce than its predecessor.

Ford Mustang GT3

The seventh-generation Ford Mustang has been the linchpin of Ford's modern motorsport efforts around the world, from the NASCAR Cup Series to Australia's Supercars series. It was no surprise, then, when the Blue Oval revealed that it would return to the IMSA WeatherTech SportsCar Championship for the first time since 2019 with the Mustang GT3, based on the 2024 Mustang Dark Horse model. The Ford Mustang GT3 is powered by a 5.4-liter, naturally aspirated Ford Coyote V8 engine.

Lamborghini Huracán GT3 EVO

Decades of racing heritage come together in the Lamborghini Huracán GT3 EVO, Lamborghini's latest GT3 challenger in sports car racing series from around the world. Developed in house in Sant’Agata Bolognese by Lamborghini Squadra Corse, the Huracán GT3 EVO builds on the winning formula of its predecessor, the Huracán GT3, with improved aerodynamics developed in conjunction with Dallara and a powerful 5.2-liter V10 engine. 2020 was a banner year for the car, with a clean sweep of the IMSA WeatherTech SportsCar Championship's driver and team titles in both its full-season and endurance race standings for Paul Miller Racing. Across the Atlantic, Barwell Motorsport ran the car to Lamborghini’s first British GT title, while a class victory in the 24 Hours of Spa and multiple GT World Challenge victories rounded out a stellar season.

McLaren 720S GT3 EVO

Since 2019, the McLaren 720S GT3 has proven itself one of the world's most competitive GT3 platforms. That success only continued in 2023 with the introduction of the 720S GT3 EVO, which improved upon the car's aerodynamics, suspension, overall balance, and other key elements.

Mercedes-AMG GT3 2020

Since its introduction in 2015, the Mercedes-AMG GT3 has been one of sports car racing's most prominent challengers. The car took home five of the top six spots, including the top four, in the Nurburgring 24 Hours on its first try, and found success with Riley Technologies in the premier IMSA WeatherTech SportsCar Championship events at Daytona and Sebring shortly after.

Porsche 911 GT3 R (992)

The latest in a long line of Porsche 911s built for sports car racing, the 992-spec edition of the Porsche 911 GT3 R follows in the footsteps of the 991-based GT3 R that debuted for the 2019 racing season. It also joins the current model of the Porsche 911 GT3 Cup car, which debuted in 2021, as a racing Porsche based on the 992 generation. In its inaugural IMSA WeatherTech SportsCar Championship season, five teams-Pfaff Motorsports, MDK Motorsports, Wright Motorsports, AO Racing Team, and Kelly-Moss with Riley-have all brought at least one 992 to the grid across the GTD and GTD Pro divisions.

Porsche 911 GT3 Cup (992)

New for the 2021 Porsche Supercup season, the latest generation of Porsche 911 GT3 Cup car builds upon an existing and successful framework to create the next era of top-notch racing in Porsche's premier global one-make racing series. Kicking up the horsepower to 510 in its 4.0-liter flat-six powerplant, 25 more than its predecessor, the latest 911 GT3 Cup features improvements to chassis construction, aerodynamics, suspension, and safety features, and can be run on synthetic fuels for the first time. Do you have what it takes to master the machine and become the next great Porsche champion?

GT4's

Aston Martin Vantage GT4

Aston Martin has long used the Vantage as its entry into GT4-spec racing, putting the car through multiple revisions and decades worth of racing history. The current-spec GT4 made its debut in the 2019 24 Hours of Nurburgring, where a factory-prepared entry took the SP8T class win by four laps. The next year, KohR Motorsports gave the Vantage GT4 its first IMSA Michelin Pilot Challenge Grand Sport championship, as drivers Kyle Marcelli and Nate Stacy scored a weekend-sweep at Mid-Ohio. Vantage GT4s remain in use with many of the top GT4 programs and events around the world.

BMW M4 G82 GT4 Evo

After years of substantial success for the original M4 GT4 platform, BMW takes things to the next level with the M4 G82 GT4. Debuting in the 2023 race season, the updated entry took over around the world in series from the IMSA Michelin Pilot Challenge to endurance races at the Nürburgring Nordschleife.

The 3.0-liter turbocharged engine maxes out at an impressive 530 horsepower, while additional refinements equipped the car to build on the legacy set out by its predecessor, the F82 model. The M4 G82 GT4 immediately built on the F82's impressive legacy with a class win on its first try at the 24h Nürburgring, titles in both IMSA series with Turner Motorsport, and much more. It's a tall order for any car to surpass a legacy like the one that the F82 model built—but the M4 G82 GT4 has been up to the task.

Ford Mustang GT4

Unveiled in the summer of 2023 for use in 2024 and beyond, the current Ford Mustang GT4 has become a popular choice in the category around the world. If its uniquely American style wasn't enough to sell the skeptics, its immediate results were; in its first race weekend, part of the IMSA VP SportsCar Challenge opener at Daytona, KohR Motorsports' Luca Mars swept both races on the way to scoring the class title later that year.

As with many other manufacturers, Ford built the Mustang GT4 for the use of customer teams, saving its factory-backed efforts for the GT3 division and higher. Developed in conjunction with Multimatic Motorsport, the Mustang GT4 boasts a 5.0-liter Coyote V8 built by Ford Performance in Michigan. Other features include Multimatic DSSV dampers, natural fiber body panels, and a GT4-specific aero package.

McLaren 570s GT4

Few manufacturers can match the thrill of driving a McLaren in any class or specification, and the 570S, the legendary brand's foray into the world of GT4s, is no exception. Powered by a 3.8-liter twin turbo V8 engine and sitting on McLaren's carbon fiber MonoCell II chassis, this highly agile machine is the car of choice for a number of customer race teams competing in GT4 formula series around the world.

The 570S GT4 broke cover at the 2016 Goodwood Festival of Speed and made its competitive debut in British GT under the brand's own supervision that same year, allowing customers that took delivery of the cars in 2017 to drive a racer that had been refined in real competition. Since then, it's proven to be a highly popular car with anyone who's driven it, setting a high water mark of 140 global podium finishes in 2019.

Mercedes AMG GT4

Since its introduction in 2015, the Mercedes-AMG GT3 has been one of sports car racing's most prominent challengers. The car took home five of the top six spots, including the top four, in the Nurburgring 24 Hours on its first try, and found success with Riley Technologies in the premier IMSA WeatherTech SportsCar Championship events at Daytona and Sebring shortly after.

For the 2020 season, the car received a slate of updates that included aerodynamic tweaks to the front splitter and rear wing and aesthetic updates to bring it closer in line with its roadbearing counterpart. Carrying over from its first iteration is the 6.3-liter V8 powerplant that produces 550 horsepower and sequential six-speed transmission. Now, the fully updated Mercedes-AMG GT3 comes to iRacing, and it's your chance to sample the next generation of German road racing performance.

Porsche 718 Cayman GT4 Clubsport MR

Few automotive manufacturers are as revered as Porsche, and many drivers will take any opportunity they can get to climb behind the wheel of one of the brand's iconic vehicles. Enter the 718 Cayman GT4 Clubsport, which combines 425 horsepower of Porsche performance with the nimble, approachable GT4 platform. The result is a highly popular sports car raced the world over, from single-class championships to the multi-class IMSA Michelin Pilot Challenge (where it makes its home on iRacing). Responsive in its handling and a whole lot of fun, it's easy to see why the 718 Cayman GT4 Clubsport is also popular as a track day car.