SIM RACING

A sharper edge for Assetto Corsa EVO’s GT tyres

The announced tyre work targets slip, steering response and the way grip falls away—while applying only to a defined set of GT slicks.

Olga Ivanova

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The Assetto Corsa EVO Steam announcement describes a focused revision to GT slick tyres: less reliance on large slip angles, a sharper response to steering and more controlled grip loss. The changes apply to GT slicks on cars ranging from the Mazda MX-5 Cup to the Ferrari F40 LM, including GT2, GT3, GT4 and Cup cars.

The scope matters. The announcement explicitly excludes F1 and road compounds, and says players will likely want to start over with their setups. That makes this a handling update with practical consequences for anyone returning to a familiar car.

Putting the rear axle back in the story

The announcement frames the work around how a tyre communicates near the limit, where a car’s behaviour can feel either predictable or frustrating. One focus is yaw moment: the rotational force created when a rear limited-slip differential sends different amounts of torque through the inside and outside wheels.

According to the source, the team reviewed factors including load, slip, camber, speed, temperature, pressure and toe to check their effects on this case. Drivers are expected to notice the result most in first- to third-gear corners, and sometimes in fourth. The effect is said to diminish at higher speeds, as downforce increases the inside rear tyre’s grip and performance changes with speed.

A quicker response—and less forgiving grip

The earlier workaround relied on high peak slip angles. As the announcement explains, that could mean turning further before reaching peak grip, while the rear of the car began to move sideways. The resulting delay could leave the car in a sensitive, sliding state. The new work lowers the slip-angle demand, with the stated aim of making steering response sharper.

Grip loss is another part of the revision. The previous calibration could keep producing grip as a driver pushed beyond the limit, the source says, making traction control less useful and excessive steering less costly. Adjustments to the slip-and-grip curves have improved this behaviour, though the announcement says that work is not finished. Its practical implication is that a setup or driving approach that felt forgiving may call for more care, especially in a race.

What players should keep in mind

Force feedback changes are described as a side effect of the tyre work, alongside a small adjustment to self-aligning torque scaling. The stated result is more noticeable oversteer and generally higher force-feedback levels.

For players, the combination of revised response, grip behaviour and feedback may change how a car feels at the limit. The announcement advises starting setups over; it also says default setups may be updated when time permits. It does not promise that those defaults will be ready alongside the tyre changes.

Newsroom

This is a defined, unfinished area of handling work rather than a change to every tyre in the simulation. For GT drivers, the key adjustment is to revisit setups and expect the limit to communicate differently.

Byline

Olga Ivanova

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