Why the Cadillac GTP Loses Speed on Straights in iRacing
The Cadillac V-Series.R GTP loses noticeable speed on long straights compared to the BMW and Porsche. Here is what the community thinks is causing it and what you can adjust in your setup.
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Is the GTP Balance of Performance in iRacing Actually Fair?
The iRacing GTP BOP system is supposed to be the great equalizer. In GTP racing, where manufacturers bring wildly different aero philosophies, engine layouts, and hybrid systems to the table, Balance of Performance exists to make sure no single car dominates on raw engineering alone. The idea is simple: level the playing field so driver…
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Why Is GTP So Hard to Balance in iRacing?
The GTP class in iRacing has a balance of performance problem the community keeps coming back to. Here is why it is so difficult to solve.
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Driving the Hybrid: GTP Deployment and Regen Explained
With the 2025 Season 4 overhaul, iRacing’s hybrids no longer feel like “special gadgets” you need to manage. For GTPs, the system is invisible. For Ferrari’s 499P, it’s rule-bound. And for F1 and LMP1 cars, hybrid quirks remain. If you’re wondering how to approach them on track, here’s what you need to know. GTPs: Invisible…
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What’s Next for GTP Hybrid in iRacing
Season 4’s hybrid overhaul delivered the biggest change yet for iRacing’s electrified racecars — especially the GTP class and Ferrari 499P. But the work isn’t done. The current system is accurate and seamless, but it isn’t the “final form.” Here’s what’s still on the horizon, what didn’t make it into Season 4, and what drivers…
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Ferrari 499P Gains New In-Car Hybrid Adjustments in Latest iRacing Patch
The Ferrari 499P hybrid adjustment has arrived in iRacing, introducing new in-car controls that let drivers fine-tune how the car’s hybrid system distributes power during high-speed cornering. This change gives 499P drivers greater flexibility to balance performance and handling after the latest patch. The new “Hybrid Rear Drive Corner %” option, found in the garage…
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iRacing GTP Hybrid MGU-K Update – Why Manual Control Was Removed
The iRacing GTP hybrid MGU-K system has been completely overhauled in the latest season update. Drivers quickly noticed that manual hybrid controls such as Quali, Attack, and Build are now unavailable. Even with keybindings set correctly, the option is grayed out in the control menu, and the black box display no longer shows MGU-K mode…
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Rumor: Aston Martin Valkyrie GTP Coming to iRacing
The iRacing Aston Martin Valkyrie could be the next major addition to the sim’s growing prototype lineup. While not yet confirmed, community speculation points to Aston Martin’s stunning Valkyrie AMR-LMH entering development under iRacing’s ongoing partnership with the manufacturer. This rumor began shortly after iRacing announced an expanded collaboration with Aston Martin in August. That…
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Season 4 Hybrid Overhaul Arrives
The wait is over. With the 2025 Season 4 release, iRacing has shipped a completely overhauled hybrid system for its most advanced racing cars. The changes are less about flashy new knobs and dials, and more about making the system accurate, seamless, and invisible—just as it should be in modern prototype racing. The New Hybrid…
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Hybrid Update Delayed: Why GTP Overhaul Skipped Season 3
By spring 2025, iRacers were eager for a long-promised update: the complete hybrid system overhaul for the GTP and Hypercar classes. After months of community feedback and developer acknowledgments, many expected it to land in Season 3. Instead, iRacing announced the hybrid rework wasn’t ready, resetting expectations and confirming the changes would come later in…
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Hybrid Overhaul Explained
When iRacing introduced the GTP class in late 2022 and expanded it through 2023–24, it brought one of the most exciting eras of modern sports car racing into the sim. BMW, Cadillac, Acura, Porsche — and eventually Ferrari’s Le Mans-winning 499P — joined the virtual grid. But along with the thrill came scrutiny: sim racers…
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Ferrari 499P – Screenshot Gallery
A visual showcase of Ferrari’s prototype in iRacing.
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Porsche 963 – Screenshot Gallery
A visual showcase of the Porsche 963 in iRacing.
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Acura ARX-06 GTP: Screenshot Gallery
A visual showcase of Acura’s hybrid prototype.
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Ferrari 499P GTP Overview and Guide
Specs, hybrid deployment, and racing style of the Ferrari 499P.
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Beginner Setup & Driving Tips – Ferrari 499P GTP
Hybrid strategy and driving advice for Ferrari’s prototype.
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Porsche 963 GTP Overview and Guide
Specs, hybrid deployment, and handling style of the Porsche 963.
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Beginner Setup & Driving Tips – Porsche 963 GTP
Hybrid strategy and setup basics for Porsche’s GTP car.
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Acura ARX-06 GTP Overview and Guide
Specs, hybrid system, and handling traits of the ARX-06.
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Ferrari 499P GTP Official Release
Ferrari’s Le Mans-winning prototype arrives in iRacing.
