The iRacing NTMv10 tire model has been teased in the latest development blog, giving fans an early look at what could be the sim’s most advanced tire system to date. Several screenshots reveal testing tools, contact patch heat maps, and new data visualizations used by the physics team to fine-tune the next-generation model.
Executive Producer Greg Hill describes NTMv10 as a “complete rethinking” of how iRacing simulates tire behavior. The new architecture aims to deliver more predictable grip, smoother transitions, and more consistent wear across long runs.
What the Teasers Show
The images shared by iRacing include tire stress overlays and real-time temperature mapping. They also show internal debugging tools that measure how rubber interacts with the surface at microscopic levels. Each segment of the tire’s contact patch is modeled independently, allowing heat and wear to build differently across the tread.
Developers say this detail will create more lifelike grip changes during long stints.
For example, tires will cool unevenly on straights and heat up faster in dirty air.
The iRacing NTMv10 also introduces more responsive force feedback, helping drivers feel when tires start to lose adhesion.
How NTMv10 Improves Realism
The new system redefines how load, temperature, and deformation are connected.
When a driver enters a corner, the tire now flexes and regains shape more smoothly.
That change reduces sudden slides and makes handling more natural at the limit.
In addition, the model updates how iRacing processes grip across multiple grooves.
This improvement means more realistic track evolution, where the fast line develops rubber and side lanes remain less grippy. As a result, races will feel more dynamic and rewarding, especially during long green-flag runs.
Part of a Bigger Physics Overhaul
The teaser confirms that NTMv10 is part of a larger push to upgrade iRacing’s physics core. It ties into ongoing work on the DirectX 12 engine, the next-generation force feedback calibration tool, and the hybrid power systems in development for cars like the Dallara IR-18. Together, these updates show that iRacing is investing heavily in core realism, not just new content.
Developers note that testing will continue through early 2025. Once validated, the model will begin rolling out to select vehicles for public testing.
Community Reaction
The teaser sparks immediate buzz across the forums and social media.
Drivers praise the new visualizations and say they finally show how complex iRacing’s physics have become. Others highlight how the update could improve consistency across car classes, especially GT and open-wheel racing.
Many players see iRacing NTMv10 as the next big step in realism—one that could redefine how every car in the sim feels.
