NASCAR has implemented an uncompromising track limits enforcement system for its historic Mexico City debut at the Autódromo Hermanos Rodríguez. The 2.417-mile circuit features strategically placed tire barriers and surveillance cameras to police driver compliance. This aggressive approach follows contentious track limit battles at the Circuit of the Americas earlier this season.
The stakes escalate as Cup Series drivers navigate unfamiliar territory in NASCAR’s first international points race since 1958. With minimal historical data and new enforcement tools, the circuit’s stadium section emerges as a potential penalty hotspot.
Tire Barriers and Cameras at the Autódromo Hermanos Rodríguez Define Enforcement Strategy
Tire stacks now line critical sections of the 14-turn circuit, physically preventing drivers from cutting corners. The barriers replace 400-pound concrete blocks used at COTA in March, a solution drivers vigorously opposed. Part-time Xfinity Series driver Brad Perez demonstrated the margins by lying perpendicular to a barrier, revealing its proximity to the racing surface.
“Here’s how close the tire barrier is to the racing surface (I am 5’8 for reference),” Perez tweeted alongside a photo showing his upper body extending onto the track. The visual proof highlights NASCAR’s commitment to zero tolerance.
here’s how close the tire barrier is to the racing surface
(i am 5’8 for reference) pic.twitter.com/NOiWEn2VzC
— bread perez (@bradxperez) June 13, 2025
Cameras supplement barriers in non-physically guarded areas. FOX Sports’ Bob Pockrass confirmed officials will monitor multiple zones for violations. “Expect NASCAR to police some of the track limits with cameras. Haven’t heard of the specific sections yet,” he wrote on X.
Jeff Gluck’s track walk revealed barrier placements with a terse warning: “Don’t hit this, I guess.” This dual approach aims to eliminate COTA’s controversial dirt-zone shortcuts that triggered driver complaints.
Stadium Section Emerges as Penalty Danger Zone at Mexico City
The circuit’s famed stadium section, a tight sequence of three coiled turns, faces intense scrutiny. NASCAR’s enforcement targets areas where drivers traditionally gain time by exceeding track boundaries, particularly during passing attempts. Historical data reveals road course penalties remain rare, with only seven issued across five circuits in 2024.
But Mexico’s unfamiliar layout changes the calculus. Only a few active Cup drivers, including Denny Hamlin and Kyle Busch, have raced here during 2005-2008 Xfinity events. Most competitors rely on simulator preparation for the modified 2.417-mile layout, which differs from Formula 1’s 2.674-mile configuration.

The first complex after the main straight presents another risk zone. Drivers decelerating from high speeds could gain unfair advantages by straight-lining corners before accelerating toward the next straight. NASCAR’s penalty precedent shows increasing strictness – COTA’s 2024 Xfinity race saw 17 drivers facing track limit violation penalties, while this year’s Cup Series event saw six penalties.
Fans show very little faith in the tire barriers. As one fan commented on Gluck’s tweet, “Those are getting nudged out of the way by stage 2.” Another wrote, “They’re gonna wind up moving that back a couple feet after practice or the Xfinity race.”
Some, on the other hand, sound like fans of these tire barriers, as one wrote, “That’s real road course racing! I wish they would put 4 more tire barriers just like that at every corner so they cannot cut it.”
Those are getting nudged out of the way by stage 2..
— AJ 9 5 (@_AJ_95_) June 13, 2025
With real-time monitoring and physical deterrents, NASCAR signals it won’t tolerate the same leniency of past seasons. As Perez’s makeshift measurement proves, the margin for error now fits within a driver’s shoulder width. Any violation could prove costly in a race already complicated by altitude effects and unfamiliar asphalt.