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NEXT BUILD Season 4: September 2026
5 Confirmed
13 Likely
10 Small Chance
See It All Below โ†“
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  • iRacing standing start grid with a full field of race cars, where iRacing consistency through the opening lap separates results

    iRacing Standing Starts: A Practical Guide to the Launch

    Wheelspin, bogging, or first-corner contact in iRacing? Here is a practical plan for standing starts: clutch and throttle technique, cold tire management, and when not to fight for position.

    Read More iRacing Standing Starts: A Practical Guide to the LaunchContinue

  • iRacing NASCAR Gen 7 pack racing on a superspeedway at Daytona

    iRacing Superspeedway Update for the Gen 7, Not in Season 4

    iRacing’s NASCAR Gen 7 cars are still running the old superspeedway aero specification. With Season 4 dropping now, here’s where the update stands and what to expect when it lands.

  • iRacing car and track race at Road America

    Which iRacing Car and Track Would You Race Forever?

    If you could only race one iRacing car and track combo forever, what would you pick? Here are the best answers, including the writer’s own.

Up Next ยท Special Event

Knoxville Nationals

Knoxville Raceway ยท 410 Sprint Cars

Aug 4โ€“9

See Event Info โ†’ All Races & Events
  • iRacing Suzuka 1000 GT3 Endurance Event Guide

    The iRacing Suzuka 1000 runs September 11-13 at Suzuka Grand Prix. Get the schedule, eligible GT3 cars, team rules, and entry requirements.

  • iRacing DTM Series Now Official With Eight 2026 Races

    The iRacing DTM Series is official for 2026, with eight rounds mirroring the real-world DTM calendar. Hereโ€™s the full schedule and how to enter.

  • Do You Need to Race LMP2 Before GTP in iRacing?

    You do not have to race LMP2 before moving to GTP in iRacing. But skipping the prototype ladder has real consequences for your pace and racecraft when you arrive in the top class.

iRacing 2026 Season 4 Build Tracker

Everything we know for the next iRacing build.

🛠Next Build: Season 4 — September 202632 items tracked
12Confirmed
  • Aston Martin Valkyrie AMR-LMH S4 Confirmed:#cars#endurance#next-build#next-build-confirmed#confirmed
  • Gen 4 Grand National S4 Confirmed:#cars#nascar#next-build#next-build-confirmed#confirmed
  • Mazda MX-5 Physics Rework S4 Confirmed:#cars#physics#next-build#next-build-confirmed#confirmed
  • Pit Summary & Car Damage UI S4 Confirmed:#features#ui#next-build#next-build-confirmed#confirmed
  • Future Track Refreshes and Rescans#oval-tracks#next-build#next-build-confirmed#road-tracks#confirmed
  • Multiclass Starts S4 Confirmed (Race Control UPDATE 2):#features#next-build#next-build-confirmed#confirmed
  • Physics Islands: Multi-Threading Overhaul S4 Confirmed UPDATE 2:#physics#next-build#next-build-confirmed#confirmed
  • Caterham Academy & 420R S4 Confirmed UPDATE 3:#cars#next-build#next-build-confirmed#confirmed
  • Track Reverb & Reverb Zones#features#next-build#next-build-confirmed#confirmed
  • Circuit Bugatti#road-tracks#next-build#next-build-confirmed#confirmed
  • Aston Martin Vantage AMR-LMH (GTP)#cars#endurance#next-build#next-build-confirmed#confirmed
  • Bahrain International Circuit#road-tracks#next-build#next-build-confirmed#confirmed
10Likely
  • iRacing confirms Career Mode is coming! UPDATE 10:#features#career-mode#next-build#next-build-likely#confirmed
  • Summit Point Motorsports Park Refresh#road-tracks#next-build#next-build-likely#wip
  • New Helmet Model UPDATE:#features#next-build#next-build-likely#confirmed
  • Circuit Paul Ricard#road-tracks#next-build#next-build-likely#confirmed
  • Oval Rubber/Surface Behavior Updates#physics#next-build#next-build-likely#confirmed
  • Dirt Oval Improvements#features#next-build#next-build-likely#confirmed
  • GT3 Pit Stop Animation#features#next-build#next-build-likely#confirmed
  • Save Feature#features#next-build#next-build-likely#confirmed
  • Circuit Ricardo Tormo#road-tracks#next-build#next-build-likely#confirmed
  • Winchester Speedway#oval-tracks#next-build#next-build-likely#wip
10Small Chance
  • Spark: iRacing's New Graphics Engine UPDATE 3:#graphics#next-build#next-build-longshot#confirmed
  • IndyCar Street Courses UPDATE:#road-tracks#next-build#next-build-longshot#rumor
  • 128 Cars Per Session#features#next-build#next-build-longshot#future
  • NTMv10 Future Tire Model#physics#next-build#next-build-longshot#confirmed
  • Salem Speedway#oval-tracks#next-build#next-build-longshot#rumor
  • TT Circuit Assen#road-tracks#next-build#next-build-longshot#rumor
  • 2027 Mercedes AMG GT3 Coming to iRacing?#cars#gt3#next-build#next-build-longshot#rumor
  • Bowman Gray Stadium coming to iRacing? UPDATE 3:#oval-tracks#next-build#next-build-longshot#rumor
  • Kyalami Grand Prix Circuit#road-tracks#next-build#next-build-longshot#rumor
  • Croft Circuit#road-tracks#next-build#next-build-longshot#wip
Last updated: August 28, 2026
    View Full Build Tracker

    Inside iRacing

    • iRacing Week 13 fun series Battle of the Little Wings formula cars racing

      iRacing Week 13 Fun Series: All 8 Running in 2026

      iRacing Week 13 fun series for 2026 includes eight unofficial races: two returning favorites and six new formats. Here is what is on the grid before Season 4 drops.

    • Porsche Cup cars racing on track in iRacing Season 3 Week 13 at Imola

      iRacing Season 3 Week 13: Weather Rerolls and New Race Formats

      iRacing Season 3 Week 13 brings Weather Rerolls across multiple series, a three-phase Porsche Cup format, an expanded 17-car iTested roster, and full-distance Truck racing at New Hampshire.

    • iRacing Week 13: New Season 4 Cars Available to Drive Now

      iRacing Week 13 is here. Try the Caterham 420R, Caterham Academy, and Aston Martin Valkyrie AMR-LMH now before Season 4 officially begins.

    • Porsche Esports Supercup World Championship Starts Sept. 19

      The 2026 Porsche Esports Supercup World Championship begins September 19 at Spa. 32 qualified drivers, five circuits, $10K prize, and a real-world Porsche drive at stake.

    • Dallara IR-18 in iRacing, the car used in the INDYCAR iRacing Series finale at WeatherTech Raceway Laguna Seca

      INDYCAR iRacing Series Finale Heads to Laguna Seca

    • iRacing multi-class race in Season 4, the type of large-grid session that benefits most from the Physics Islands CPU performance update

      iRacing Physics Islands Explained

    • Steven Wilson No. 77 Spire Motorsports eNASCAR Race 10 Michigan win

      Steven Wilson Wins eNASCAR Race 10 for Championship 4 Spot

    • Mazda MX-5 Cup cars racing side by side in iRacing, a Class D road series similar to the incoming Caterham Academy

      Caterham Academy and 420R Confirmed for iRacing Season 4

    • iRacing racing at Road Atlanta, a circuit that will benefit from the new night racing lighting engine

      Night Racing Is Coming to iRacing for the First Time

    More #InsideiRacing

    Speed & Strategy

    • Multiple iRacing cars racing wheel-to-wheel on a road circuit during an online race session

      Your First iRacing Race: A Practical Plan

      Nervous about your first iRacing race? Here is a practical plan covering qualifying, Lap 1, incident points, and what to review when it is done.

    • iRacing MX-5 Cup cars racing side by side on track, illustrating the close competition where iRacing consistency and pace both matter

      Is Consistency Enough in iRacing? When Pure Pace Matters More

      iRacing consistency keeps you safe and incident-free through the early license levels. But thereโ€™s a point where clean laps stop being enough, and finding pace becomes the real work.

    • iRacing Season 3 Patch 3 multiclass race start at Sebring International Raceway

      Rolling Start Etiquette in iRacing

      Rolling starts in iRacing are not always instinctive. Here is what the pole sitter controls, when the field can go, and how to avoid jump start penalties.

    More Speed & Strategy
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    Track Hub

    • Why Monza Can Be Chaos in iRacing

      Why Monza Can Be Chaos in iRacing

    • Surviving Monza in iRacing โ€“ A Practical Guide

      Surviving Monza in iRacing โ€“ A Practical Guide


    • Darlington Raceway: Screenshot Gallery

    • Watkins Glen International: Screenshot Gallery

    • Homestead-Miami Speedway: Screenshot Gallery

    Go to iRacing Track HUB

    Car Hub

    • Beginner Setup and Driving Tips for the Dirt Legends Ford ’34 Coupe

      Beginner Setup and Driving Tips for the Dirt Legends Ford ’34 Coupe

    • The Free Gem: Why the CTS-V is the Best Way to GT3

      The Free Gem: Why the CTS-V is the Best Way to GT3


    • The 488 GTE Legacy: Ferrariโ€™s Enduring iRacing Legend


    • Pro Mazda to Legacy: The Indy Pro 2000 Transition


    • Lucas Oil Off Road Trucks โ€” Screenshot Gallery


    Go to iRacing Car HUB
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    ICYMI

    • iRacing Standing Starts: A Practical Guide to the Launch
    • iRacing Superspeedway Update for the Gen 7, Not in Season 4
    • Which iRacing Car and Track Would You Race Forever?

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