Automobilista 2 v1.5.5.5 Le Mans
Image credit: Reiza Studios

Automobilista 2 v1.5.5.5 Plus Two Hotfixes Released

Automobilista 2

Reiza Studios has launched another update, with Automobilista 2 v1.5.5.5 and two corresponding hotfixes tweaking the sim further. Additionally, missing objects and seasonal foliage have been added to Le Mans.

Ever since the release of Le Mans and the Endurance Pack Pt. 1 DLC, Reiza Studios have hardly taken a break from tweaking Automobilista 2. Version marks the third update of 2024, and it is “the final complementary update to this Le Mans dev cycle”, as Reiza Founder and Lead Developer Renato Simioni states in the forum post announcing the update.

Despite being only a minor update, Automobilista 2 v1.5.5.5 comes with a few interesting changes. Most notably, Le Mans now features trackside objects that were previously missing. Furthermore, those who are keen on exploring the French countryside outside of its traditional summer setting can do so with the proper foliage to match now. Racing in Fall, Spring or Winter looks the part as a result.

Other adjustments include safety car tweaks, the implementation of blue flags to trackside LED flag panels and the addition of these panels to Estoril (Cascais) and Jerez. Meanwhile, more work has taken place under the hood of AMS2 as well. The computer-controlled opposition should now react better to what is happening around them, also having received tweaks to their grip levels.

Seasonal foliage is now available for Le Mans in Automobilista 2. Image credit: Reiza Studios

Automobilista 2 v1.5.5.5: Two Hotfixes Deployed Quickly

More tire tread adjustments have also been implemented for a number of cars. Certain classes’ FFB was adjusted by the update as well.

Of course, updates can introduce further complications. Originally, AMS2 would crash to desktop (CTD) when trying to edit session settings in certain modes. Just hours after the update had dropped, a hotfix was deployed, however. Another one followed the next day, looking to remedy other minor issues that the community had pointed out.

You can find the full Automobilista 2 v1.5.5.5 changelog below, as well as all changes that both of the hotfixes have introduced.


Automobilista 2 v1.5.5.5


  • Implemented local blue flag for track flag panels in live play
  • Fixed safety car being loaded in events with flag rules disabled
  • Fixed FCY options being enabled when flag rules are disabled; Added warning to user if their flag rules setting change would introduce a scheduled FCY
  • Trackside vehicle beacon lights will now flick on when there is a full course yellow
  • Fixed issue with the ‘Get closer to your lead’ timer wouldn’t work for the race leader during full course yellow; Display the remaining time allowed to catch the car ahead during full course yellow sooner
  • Fixed engine always being stopped during pit stops
  • Changed Max Visible Vehicles algorithm to use lap distance distance and weight towards other vehicles in the pits when viewed vehicle is in the pits and vice versa


  • Added missing translations for Scheduled Full Course Yellow setting and correct hide it when disabled by rules setting
  • Added event preset for Endurance Brasil 2023


  • Minor tire tread adjustments to Caddilac DPi, P1 (both gens), P2, P3, P4, GTE, GT3 (both gens), GT Open, Porsche Cup, F-Trainers (both), GT Classics, Copa Classics, Lancer Cup, F-Inter, F-Ultimate Gen1, Group A, Group C, BMW Procar, Stock Opala 1986, Stock Omega 1999, Caterhams (Supersport, Superlight & 620R), Hypercars, Supercars
  • Revised FFB for F-Ultimate (both gens), F-Reiza, P1 (both gens), P2, P3, P4, Stock Car Brasil 2019-2023, BMW M1 Procar, GT Classic, Group A, Aussie Racing Camaro
  • Minor aero adjustments to LD variants of Group C & GT1 cars (lower drag & slightly more drag lift leading to more accurate top speeds and overall performance)
  • Adjusted effects of drafting for both player and AI ( generally draft is more powerful than before)
  • Adjusted dirty air effects to compensate increased overall draft effects (overall still more perceptible turbulence than before)


  • Added track-specific logic to narrowing AI corridors
  • AI corridor narrowing is now disabled for AI immediately behind player & for AI going through lapped traffic
  • Adjusted dirty air effects to compensate increased overall draft effects (overall still more perceptible turbulence than before)
  • Reduced effect of water saturation on AI grip levels
  • Reduced AI simplified peak slip angles for all modern slicks
  • Slightly increased AI pull urgent out rate & speed thresholds while running off the ideal racing line
  • Revised all AI tires to reduce front / rear grip split (for cars with larger rear tires) to reduce high speed understeer issues & general AI advantages in traction (especially rain)
  • Further AI brake usage adjustments to LMDh, P1 (both gens), GTE, BMW Procar
  • AI calibration pass for BMW Procar, F-Trainers (both), GTE, Hypercars, P1 (both gens), P3, P4
  • Daytona: Disabled AI speed boost at the bus stop chicane which could occasionally contribute to AI losing control there
  • Barcelona 1991: Recalculated corridors (ahould fix AI drivers stopping on track when retiring)


  • Le Mans: Added seasonal meshes roadsigns; Adjusted arrow signs; general mapping/blending corrections; Added remaining buildings & TSOs; Adjusted static objects; Further LOD tuning; Further trackside camera adjustments
  • Added 3D trees to Monza (all versions)
  • Added track flag panels to Jerez & Cascais
  • Fontana: Reverted trackside cameras adjusted for Gil de Ferran tribute back to modern cameras
Automobilista 2 v1.5.5.5 Hotfix 1
  • Fixed CTD issue that occurred when trying to edit certain sessions
Automobilista 2 v1.5.5.5 Hotfix 2
  • Fixed Full Course Yellows input incorrectly disabling on value change
  • Minor tire tread adjustments for Kart 125cc, GT Open, Stock Car V8 2020-2022 & 2023, F-Inter, F-Junior, F-USA speedway compounds
  • Revised FFB for Vintage Touring Cars (both tiers)
  • Slightly upscaled AI Aggression ranges for all classes except high-end formulas
  • Increased AI corridor fraction for IMS
  • F-Vintage (both gens): Reduced impact of fuel load on AI performance
  • AI rolling resistance calibration for GT3 (both gens), GTE
  • AI calibration pass for F-Junior & F-USA 2023 Speedway variant
  • Adjusted corridor edges near Boeups to minimise risk of AI incidents while battling for position
  • VIR: Added custom grip range (same standard as Grade 1 tracks)
  • McLaren 720S GT3 EVO: Corrected contrast on display texture

And what comes next for AMS2? According to Simioni, “this should be our last public update to AMS2 for at least a couple of months as we switch focus to new longer term developments.” This could refer to the multiplayer overhaul that is on Reiza’s list of improvements, as well as classic Le Mans content that is also planned.

What are your thoughts on Automobilista 2 v1.5.5.5? Let us know on Twitter @OverTake_gg or in the comments below!

Lifelong motorsport enthusiast and sim racing aficionado, walking racing history encyclopedia. I have been working in sim racing since 2021 after previously working with pro and amateur sports teams and athletes for a daily newspaper in Wolfsburg. Nothing gets me more excited than motor racing, especially with the beastly machines of the past. A third pedal and h-shifter are not just options for a rig, they are mandatory to me. Avid fan of the IndyCar series (modern and CART/pre-split).