Legacy

Straight4 features the key talents that have shaped sim racing’s legacy over two decades. This unique heritage includes AAA-bestsellers such as the GTR® series that defined a generation of modders, and the multi-million-selling Project CARS franchise

Technology

Refinements in racing come mostly in small chunks of performance. Until suddenly they come in a leap that pushes the entire grid to heights unforeseen

Merging passion for motorsport and community with the precision of a new, AI-driven physics engine, Straight4 is building the next generation of AAA motorsport simulation

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FIDELITY

“Our new physics platform will achieve ever-increasing realism by building the physics platform to be modular and extensible from the ground up. This enables more advanced models with superior validation, less systemic complexity, elevated quality, and new AI-driven flexibility”

— AJ Weber, Director Physics & Simulation

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INTENSITY

“We will be combining the power of the very latest multi-channel audio technologies with the most detailed sonic vehicle models to bring unprecedented levels of immersion, excitement, and fidelity to the player. The brutality of motorsport is our key focus”

— Prof. Stephen Baysted, Composer and Audio Director

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: A free, open-source alternative that handles RAR files (and almost every other format) with ease.

💡 : If you see extensions like .r00 , .r01 , or .001 , these are just older naming conventions for the same split-part system. The process remains the same—just open the first one! Understand.rar

If your download looks like Understand.part1.rar , Understand.part2.rar , etc., you are dealing with a . Keep them together : Move all parts into the same folder . : A free, open-source alternative that handles RAR

: The go-to lightweight solution for Mac users. 🧩 How to Handle "Split" RAR Files : A free

: The software will automatically pull data from all other parts to recreate the full original file. 🔍 Why is it a RAR?

EXPERIENCE

“I’ve raced cars since the ’80s doing everything from formula cars to GT cars and a pro’ race driver 1998-2004. I’ve also worked on sims for years so I’m bringing all my experience to this new generation of racing sims”

— Henrik Roos, Handling Consultant

MOTORSPORT

“I’ve never seen a mission statement more geared towards user experience than this project. The message to race fans and sim racers is clear: you want real, come and get it. You want to drive faster, we’ll show you how. There’s no concessions here. Just motorsport, pure and simple. Buckle up!”

— Ben Collins, Driving Consultant

: A free, open-source alternative that handles RAR files (and almost every other format) with ease.

💡 : If you see extensions like .r00 , .r01 , or .001 , these are just older naming conventions for the same split-part system. The process remains the same—just open the first one!

If your download looks like Understand.part1.rar , Understand.part2.rar , etc., you are dealing with a . Keep them together : Move all parts into the same folder .

: The go-to lightweight solution for Mac users. 🧩 How to Handle "Split" RAR Files

: The software will automatically pull data from all other parts to recreate the full original file. 🔍 Why is it a RAR?

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Reality. Refined.

Legacy

Technology

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FIDELITY

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INTENSITY

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EXPERIENCE

MOTORSPORT

Join The Journey