GP4: ICYMI Summer 2026

Welcome to another update covering the latest developments in the Grand Prix 4 modding community. This edition arrives a little later than planned, with real-life commitments taking priority, and the extended periods of downtime affecting the main forum also making it more difficult to gather the necessary links and information.

However, the delay has not slowed down the incredible work being carried out by the community. New and updated tools continue to expand what is possible with GP4, visual enhancements are helping the game look better than ever, and new cars and tracks continue to be released and refined. This update highlights some of the latest contributions from the talented authors keeping the game alive.

There has also been significant progress on the 2026 season content. The grid is now complete, with cars, helmets, and tyres available, alongside the release of a 2026 mod. While still a work in progress and awaiting further content from dedicated contributors, it represents another major milestone in bringing a modern season to GP4.

Two recent releases have also been highlighted separately in recent days: a new 2001 track from Hega and a 2002 track update from Naitch7, both of which deserve recognition for their contribution to the community. With that covered, let's take a look at the latest tools, updates, cars, and tracks released by the community.

New Features

I am excited that there are now two options available to fix the flickering issue in the distance. Below are some shots taken by Hega to show the difference it makes.

GP4++ v2.2

by Öggo

GP4++ continues to expand modding capabilities, introducing per-driver visor and pit engineer support, advanced rear light controls, improved GP4 Tweaker integration, real-time data access, and enhanced graphics through configurable z-buffer formats to reduce z-fighting.

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GP4 flickering fix

by gplaps

A lightweight replacement D3D8 DLL that fixes GP4's z-buffer to eliminate texture flickering while forwarding all other Direct3D calls to the standard d3d8.dll, or to a custom d3d8_real.dll placed in the GP4 folder, allowing it to be used alongside other D3D8 wrappers.

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GP4MD

by node91

A test release introducing tools to edit and extract Magic Data, support modern F1 sprint race formats, adjust tyre wear and fuel consumption, and tweak CC cars behaviour.

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Helmet Installer v1.1

by Reinier Tetteroo

This is one from the archives, made in 2002, with this util it is possible to make a helmet pack, and create an auto-installer for it.

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Cars

While the 2026 cars have been developed and released on their own dedicated page, work on the 1999 season also continues.

1999 Minardi M01

by Hega

A complete 1999 Minardi package featuring three car models and full-season textures, with credits to quickslick for extensive reference material and research, JBS Racing Parts & Memorabilia for Monza livery reference, Enzojz for 3D model components, and soulbringer for additional 3D parts.

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1999 Benetton B199

by Hega

Includes four car models and all textures for the 1999 season.

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1999 Jordan 199 updated

by Hega, fongu

Version 1.1 corrects the car's scale to real-world dimensions, updates all GP4 Tweaker coordinates, and retains the existing textures.

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1999 Williams FW21 updated

by Hega

Version 1.1 corrects the front suspension geometry, updates the tyre position coordinates, and retains the existing textures.

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1999 Ferrari F399 updated

by Hega, ASR Formula

Version 2.1 refines the car model and textures with front wing and sponsor logo corrections, updated circuit-specific details, new Melbourne and Interlagos shapes, and revised helmet position coordinates for Irvine's Bieffe helmet.

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New Tracks

Autódromo Monterrey, Mexico

by viking75

A recreation of the full Autódromo Monterrey circuit, featuring its distinctive chicanes and a recreation of the iconic bridge start.

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1967 Monaco fix

by viking75, ginoblade

This update on ginoblade's original work, fixes the pit entry, allowing proper access to the pits, and removes the rail collisions at the final turn/start-finish section and Mirabeau corner.

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1972 Osterreichring

by jcgrj, Pedro27, Jcaranti

A 1972 Osterreichring layout rebuild, based on the original work by Pedro and Jcaranti.

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1972 Monaco

by Viking75, Pedro27, Jcaranti, ginoblade

A 1972 Monaco layout update built on Pedro and Jcaranti's work, featuring Ginoblade's period-correct objects, custom additions, and modifications to reflect the era, including the relocated pit area introduced in 1972.

More Info Download

As always, this would not be possible without the dedication of the many authors who continue to support the modding community with new tools, updates, and content. A special thanks goes to everyone contributing to the 2026 season projects, even those not covered in these posts — your work is equally valued and appreciated.

Until next time, happy racing!

GP4: 2026 CSM & non-CSM mod by fongu

 

The first version of the 2026 Grand Prix 4 Mod is finally here!

First and foremost, I'd like to thank all of the original authors whose work has made this release possible. My role has largely been to compile, adapt, and bring everything together into a complete package.

This release features the full 2026 Formula One grid, with cars created by Excalibur and Isaint. I was also pleased to contribute by creating several of this year's cars myself. The Cadillac livery has been revised and is now much closer to the real-world design than the version included in the initial release.
This release also introduces special liveries for used in the early season Grands Prix:

• Japanese Grand Prix – Mercedes, Racing Bulls and Haas special liveries.
• Miami Grand Prix – Racing Bulls, Alpine, and Cadillac special liveries.

These are included alongside the standard 2026 season liveries

The 2026 helmet set has been built on Theofilos' excellent RHP helmet templates, along with Jvinu's Schuberth and Stilo templates. I'm grateful to both of them for providing such a solid foundation on which to paint my own helmets.

Many thanks also go to Excalibur for the updated tyres and the new 3D wheel rims, which add another level of authenticity to the cars.

As with previous releases, this mod benefits enormously from Öggo's GP4++, which brings a wealth of graphical and gameplay enhancements. The flashing lights in particular look fantastic. I've also included gplaps' z-buffer fix. While this feature is now available within GP4++, it is configured here to work alongside crosire's DirectX 9 patch for the best compatibility.

Thanks again to Öggo for making individual cockpit shapes possible. This allowed me to convert cockpit interiors directly from each car, and this release includes the new Aston Martin internal steering wheel.

As always, a huge thank you to Gitanes for his outstanding performance files and physics, which continue to provide an excellent driving experience.

I'm also grateful to Mailson Teles for sharing his updated 2026 TV graphics package, which introduces several exciting new features.

The sound package included in this release is the excellent 2025 Red Bull Honda set by jcgrj.

There are many more contributors who deserve recognition, and a full list of credits is included with the mod. Without the work of the entire GP4 community, this project would be a shadow of what it is.

For a number of reasons, I've had to scale back my modding over the past few months, so I apologise that this release has taken longer than I had hoped. My original plan was to include several additional features and improvements, but unfortunately time simply didn't allow me to complete everything in time for this first release.

As with last year's mod, there is also a non-CSM version which is available too.

I hope you enjoy the mod, and thank you all for your continued support of the Grand Prix 4 community.

GP4: 2002 Melbourne by Naitch7 & Hega

Here is the 2002 Melbourne track updated. 

This track was originally updated by Hega and has now been updated to 2002 by Naitch7 as accurately as possible. 

"Hires realistic pit stands, garages, track adverts, reverse garages for Australia like in real life, and other small changes for the 2002 track"

The quality is fantastic, as you can see in the screenshots below, and I am looking forward to seeing more tracks updated like this.

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2002 Melbourne by Naitch7, Hega

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