Showing posts with label jcgrj. Show all posts

Tuesday, 7 July 2026

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.

More Info Download

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.

More Info Download

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.

More Info Download

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.

Download

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.

More Info Download

1999 Benetton B199

by Hega

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

More Info Download

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.

More Info Download

1999 Williams FW21 updated

by Hega

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

More Info Download

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.

More Info Download

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.

More Info Download

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.

More Info Download

1972 Osterreichring

by jcgrj, Pedro27, Jcaranti

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

More Info Download

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!

Friday, 9 January 2026

GP4: ICYMI - January 2026

A new year is under way, and it's time again to catch up with the rest of the 2025 releases in the Grand Prix 4 community. It's been a busy final few months of the year and there's plenty of cool developments by new and familiar authors who have shared their work with the community.

On my side, I have now updated this blog with mirror links to most of these downloads and some on the dedicated 2025 Download Resources page.

Without further ado, let's take a look at what's been released in the community lately.

New Features

GP4++

by Öggo

This combines the Individual Meshes & Textures with the hi-res pitcrews DLL, whilst adding a new feature to have driver specific engineers, and individual meshes for engineers and pitcrews. There are other features now editable directly, such as the NoCD option, enabling advanced car-shader for internal steering wheels, and cockpit visor customisations.

More Info Download

Hi-Res Pitcrew Meshes

by Öggo

Hi resolution pitcrew meshes has been available for a while now, but now Öggo has created a working model for engineers and pitcrews. It is a proof of concept, but still a massive improvement on the original mesh from the original game. This comes with a PSD template, so I look forward to seeing some new skins painted soon.

More Info Download

F1 Championship Calculator

by Kresljedos

A new tool that is still under development by Kresljedos for calculating standings for a full F1 season, due to GP4's limitation of only a 17 track season. This runs in a browser.

More Info & Download

SkaningeN's add on Packs

2012 Cars Add-on (Season Pack)

by SkaningeN

He writes:

"So 2012 it is. And it's quite similar to the 2011 Add-on, but this time I decided to bring you an whole season set of cars in one package. Even the versions I have not edited so you can easily make your own mod if these are the cars you want to use. All versions (I Think) is included in this pack, I've done my best to spot differences, correcting mistakes on existing ones and adding missing versions. Most cars are converted from F1CM by Josekast, with a select few from Soulbringer, Hega and RSCT."

More Info Download

2012 Helmetset and Shapes

by SkaningeN

He writes:

"The 2012 helmetset now with seperate helmet shapes. This helmetset have gotten some tweaks and now also gotten the correct helmetshapes for all drivers. I've added some missing helmets, fixed some others, fixed the alphalayer on some and added new versions that seemed to be missing.

All helmets from the 2012 season (that I know of) is included in this pack and are painted to fit the correct helmetshape. And I've done the best I can to make sure each helmet has the correct visor tint for the right races. But in most cases, you can decide yourself. You can run all helmets with individual shapes or you can use all helmets with only one shape for all. But if you only use one shape, some textures will not fit properly, most cases the visor tear offs and the new visorstrips on the updated shapes."

More Info Download

2012 Tyres & Rims

by SkaningeN

He writes:

"Here is a 2012 tyreset that has it's roots the fantastic years of 2005 to 2009. With Enzojz and Lee's great talent for modding GP4 back then, I've just modernized their work a bit to bring you an updated 2012 tyreset."

More Info Download

Cars

1999 Sauber C18

by Hega

He writes

"4 different shapes + textures for full 1999 season included.

Thank you:

Enzojz for the Sauber C19 3D model which I used as a base for this car

quickslick for driver numbers

soulbringer for some 3D parts

More Info Download

New Tracks

1964 Le Mans/Circuit de la Sarthe

by viking75

A beta version of a shortened version of the Le Mans (due to limitations of GP4) was created by Viking75, a welcome addition to the tracks available for Grand Prix 4 and some of the older sports car mods

More Info Download

Utah Motosports Campus, USA

by viking75

Utah Motorsports Campus is a real american track for endurance cars by Viking75. It is unfinished, and bigger than the real version, but nice to have and drive on too.

More Info Download

1990 Denver, USA

by viking75

Another not quite finished version of the Denver track used by Champ Cars.

More Info Download

1990s Thruxton, UK

by viking75

This is one of my personal favourite tracks in the UK, with its flowing high speed bends, particular in touring cars or lower formulae cars. It's great to have this in GP4.

More Info Download

1958 Melbourne, Australia

by viking75

A real track and layout, but with a lack of pictures and videos, an imagined environment.

More Info Download

Southside Speedway, USA

by viking75

A real track and layout used by NASCARs, but scaled up due to GP4's limitations

More Info Download

1994 Circuit de Barcelona-Catalunya, Spain

by jcgrj (based on 1994 Trackpack)

A cc-line fix to update the track made by Gap177, Plodekk and Cleberpister's 1994 track with the tyre chicane.

More Info Download

2000 Melbourne, Australia

by Naitch7 (based on Hega's work)

Naitch7 continues updating tracks to 2000 spec. Austalian and Brazilian tracks have been updated.

More Info Download 2000 Melbourne Download 2000 Interlagos

Sounds

Ford Cosworth V8 1979-82 - v3.0

by jcgrj

A new update to the Ford Cosworth V8 engine for use in mods of hte early eighties.

More Info Download

Honda V6 1988

by jcgrj

A new update to the Ford Cosworth V8 engine for use in mods of hte early eighties.

More Info Download

It just remains for me to be grateful to all the authors who are helping keep the modding community alive with more tools and mods. Thanks to all those who have contributed to the 2025 season content that isn't usually featured in these posts, but no less appreciated.

Until next time, happy racing!

Wednesday, 31 December 2025

GP4: 2025 stand-alone mod (GP4 Memory Access)

F1 2025 Mod compiled by fongu

Let me wish you a very happy New Year.

I am proud to release to you the 2025 mod as a non-CSM, stand-alone version, the first mod to be released using GP4 Memory Access.

Like the CSM mod, this is a little bit proof-of-concept than a full blown complete mod. This mod shows a working example of how to use GP4 Memory Access by Carl_gpgames and Öggo.

I've spent less time creating content and more time in exploring new features to present to you - hoping that other authors may be able to fill in some of the gaps.

All of the content is already compiled in the CSM version of the mod: 2025 CSM Mod

This has no tracks included, no driver changes, no additional liveries and no special helmets - it's just a generic base 2025 mod.

What is new to this mod, and will soon be added to the CSM version, are the 2025 TV graphics by Mailson Teles.

Installation Notes

F1 2025 Stand-alone Mod

Download

To run this mod, simply:

extract the GP4-2025 folder anywhere on your machine.
Open GP4MemoryAccess.exe
Click 'Patch & Run' on the bottom
Enjoy racing!

Wednesday, 19 November 2025

GP4: F1 2025 Mod update v1.1 (CSM)

F1 2025 Mod compiled by fongu

I present to you an update for the F1 2025 Mod.

This is not a big update, but it contains some fixes and some new files.

Thanks to jcgrj for creating new sounds from the 2025 Red Bull RB21, which has been added to the mod.

Thanks also to Gitanes for his recently updated performance files. The average and track specific performaces have been updated up to and including the Brazilian GP.

And thanks to Excalibur for updating his Williams livery and rims with the Austin GP special livery.

2025 Williams Austin GP livery by Excalibur

Max Verstappen has been running a transparent wing on his helmet, so I have updated the helmet shape by Jvinu to reflect that in this mod.

There's also some fixes as well.

The Mercedes internal steering wheel has been fixed, some of the readouts were incorrectly positioned.

There was an error in the physics loading, that has now been rectified.

GP4: ICYMI - September 2025

Welcome to September's version of ICYMI, where it's basically news from what has been released for GP4 by authors across our great community. It's always good to see old and new authors modding different areas of the game.

New Tracks

2000 HD Trackpack by Gap177

by Gap17 More Info

This is a non TSM trackpack, designed to be implemented in GPxPatch direct. Here are some Installation Notes (also included in the pack)

⬇ Download for GPxPatch

Here is a TSM compatible version, just extract the items into your Grand Prix4\Tracks folder. Thanks to KerleyF1 for putting this together.

⬇ Download for TSM

2000 Tracks

by Naitch7

Also creating excellent track updates is Naitch7 with six tracks released so far

More Info Hockenheim Imola Magny Cours Monaco Sepang Silverstone

1980 Paul Ricard / Le Castellet

by jcgrj

Based on Gezere's modern Paul Ricard track, this is nicely retro-fitted to 1970s/1980s era of the track

More Info Download

2025 Monza

by gap177

Based on previous work by TTM, Hega and Jucksman, gap177 continues to update this track to modern standards

More Info Download

Helmets

Bieffe Helmets Pack (F1, Predator, Aero)

by Öggo

More Info Download

1993 Helmet Set updated v1.31

by Öggo and fongu

More Info Download

Cars

1999 BAR 01

by Hega

More Info Download

Steering Wheels

1999 Internal/External Steering Wheels

by rracunis

More Info Download

Utilities

ric-o-mputer and dyn-a-mate®

by ricomaster

The file is in .ods (libreoffice) format. It has no macros.

ric-o-mputer®

[physics simulator]
generates physics values on a set of variables, from user input and referenced data.

dyn-a-mate®

[engine map generator]
generates a torque/power map interpolated/scaled from baseline models or user data.

More Info Download

Thanks to all those who are working so hard to keep this game and community thriving. Keep racing!

Wednesday, 11 June 2025

GP4: 1993 Mod Version 2.0 by KerleyF1 & fongu

The 1993 season.

What do you remember from it?

Prost coasting to the championship
Senna's incredible season
The last time Prost and Senna shared a track
The "most technologically advanced F1 cars" ever
Andretti's ill-fated move to McLaren
Hakkinen's start at McLaren
That incredible first lap at Donington
The under-rated simmering rivalry between Senna and Schumacher
Berger's suspension failure on the way out of the pits at Estoril
Sauber's impressive debut
Irvine's debut and punch-up

The 1993 season has been faithfully recreated by so many talented modders from the community. Also, It's been a delight to work with the nicest guy in the GP4 community, my friend, KerleyF1 (grandprixmods.blogspot.com).

For a long, long time, we had talked about updating the 1993 Mod for Grand Prix 4, and it's finally here!

KerleyF1 has done great work on the structure of the mod and the graphics and painstakingly installing all the track specific variants of the cars and helmets. In game graphics like the one below look fantastic.

This is built on the work on previous mods by TomMK (from GP4 Central) and Mschumi24.

And a massive thanks to Öggo who has been involved in every car in this mod, except one late season Tyrrell 021 which was done by me. Not only that, he's created all the helmet shapes and every driver has a personalised helmet texture do a level of specificity that is mind blowing. This mod also features a lot of his tweaks that have brought this mod to the next level.

I have learned a lot in making the 1994 mod, and it was good to carry some things over to this mod.

So what's new?

The top four teams, namely the Williams, McLaren, Benetton and Ferrari, have all had their cars resized to be more consistent with one another. For the Williams, I have also extended the front wing horizontally to be more accurate. GP4Central's mod also had low downforce rear wings, which have been incorporated into this mod, along with new lower lods for them.

New tweaks include removing the refueller from the animation, and starting the race with full fuel loads.

The 1993 steering wheel brought to us by Carl_gpgames is now included. With Öggo's tweak, this is now properly rendered in 3D and enables the advanced carshader. The external wheel was added by KerleyF1, and the arms are from Carl_gpgames, whilst the glove is an adaption from working in ChatGPT.

Carried over from the 1994 mod are the pit props and the marshall. I have also brought over the new high resolution tyre treads to go with the updated 3D rims and sidewalls by Alesi_fan and Öggo. There's also lots of customisable options in the CSM menu too.

Updated sounds by jcgrj are also carried over from the 1994 mod with some sounds by Mitsuro_Sano.

Also new to this mod are individual internal cockpits. This version is a bit more refined than the 1994 mod, and as the cars created for this were done with a generic dashboard, it means I can get a working dashboard on all teams, even though the positioning is different for each car.

I have also created new visors, these ones are more inspired by the ones in the 2011 mod.

Thanks again to Gap177 for his amazing work on the existing 1993 trackpack by Plodekk and cleberpister. Here's some more screenshots from the mod with some of the new HD tracks.