iRacing rolled out 2026 Season 4 Patch 2 (build 2026.11.02.01), delivering a targeted set of sim, UI, and track fixes headed by major improvements to the Multiple Pace Cars system ahead of its live rollout in official multiclass series during the closing weeks of Season 4.
In IMSA and endurance splits where GTP, LMP2, and GT3 classes share the same grid, having slower classes stuck directly on the rear bumper of prototypes before the green flag often triggers accordion pileups in the final chicane. Using separate pace cars to stagger class starts solves that gap cleanly.
- Refines class spacing and green-flag handoffs when two or more pace cars lead staggered multiclass fields.
- Preps the feature to go live in select official series during the final weeks of 2026 Season 4.
- Updates Charlotte Motor Speedway Roval pit exit barriers to match the 2025 real-world layout.
Gives GT3 and LMP2 leaders a clean gap before the green flag waves.
- Adds a toggleable setting on the Pit Speed Widget to display live pit stall error messages like "Too Far Left!" and "Too Much Damage!".
- Fixes a sim crash triggered when switching between triple-screen and single-screen UI profiles with HUD widgets anchored near screen edges.
- Corrects wet-tire tread patterns on the Dallara IR18 and audio pops on the Porsche 911 GT3 R (992).
Eliminates lost seconds in pit lane when you overshoot your pit box markings by a few inches.
Why Pit Stall Error Prompts Matter in Endurance Stints
Nothing ruins a clean green-flag pit stop faster than sitting stationary in your box wondering why the jack man has not lifted the car, only to realize you stopped six inches too far to the left. Seeing "Too Far Left!" or "Too Far Forward!" right inside the Pit Speed Widget lets you adjust your stopping mark immediately without taking your eyes off pit road.
