Automobilista 2 v1.6.6 adds Aston Martin content, Nürburgring 2025, and multiplayer/AI fixes

We’ve got a sizable Automobilista 2 update in v1.6.6, with new DLC content plus fixes and improvements across multiplayer, AI, tracks, vehicles, audio, and UI. The official announcement also notes a temporary free trial period for the new DLC content, with access expected to become restricted by August 1, and that leagues can stay on the previous v1.6.5.2 branch if needed via Steam beta options. Full details are in the official release post.

What changed

Cars

Added Endurance Pack Pt3 content:
- Aston Martin Valkyrie Hypercar to GTP / LMDh
- Aston Martin GT3 Evo to GTD / GT3 Gen2
- Aston Martin GT4 Evo to GT4
- Aston Martin GTE to GTE
- Alpine A110 GT4 Evo to GT4
- Ligier LS2-R to Ligier European Series
Added customizable wheel rims for cars with livery overrides.
Vehicle-specific fixes include Porsche 992 GT3R material and LED updates, Stock Car 2019 cockpit POV adjustment, F-V10 Gen2 cockpit front rim fix, and Corvette Z06.R caliper branding.

Tracks

Added Nürburgring 2025 DLC with Nordschleife, 24h, and Grand Prix layouts.
Nürburgring 2020 received a complete 3D mesh and art overhaul across all layouts.
Track fixes for Mosport, Termas Rio Hondo, Donington National, Granja Viana, plus a minor wet racing line grip adjustment.

Features

Added an option to disable collisions with dynamic trackside objects.
Updated tarmac shader behavior for more realistic fresnel reflection.
Added suspension and chassis sound effect.

Physics

AI fuel and pit logic was revised to reduce unnecessary pitstops, prevent late-race unnecessary stops, and correct endurance-class pit strategy inconsistencies.
Further AI behavior adjustments were made for GTP/LMDh, LMP2, DPi, P1, GT3, GT4, Sigma G5 P1, and some formula classes.
Minor tire/tread adjustments were made across several stock car, prototype, GT, and one-make classes.

Fixes

Fixed one multiplayer case where sessions could get stuck at the end of practice or qualifying.
Optimized packet transfer during host migration and session end to reduce risks of mass lag or disconnections.
Fixed a LiveTrack rubber update issue under acceleration.
Fixed weather selection dialog activation for some weather types.
Fixed stereo engine audio issues in external camera sets and helmet audio muffling behavior.

We should confirm whether our championship depends on trial DLC access, lock the intended game branch before events, and retest Nürburgring layouts plus multiplayer session flow ahead of league races.

From the changelog

Structured change list parsed from the official notes.

cars

Automobilista 2 V1.6.6 is now live! Along with several fixes & improvements to both single & multiplayer mode, the new update introduces a new manufacturer as Aston Martin makes its debut in AMS2 with four new cars, including the formidable Valkyrie Hypercar - all part of the freshly released Endurance Pack Pt3. Also coming along with this release is Nurburgring 2025 - a brand new version of the infamours Green featuring both the Grand Prix and Nordschleife layouts as well as other variations. [img src="{STEAM_CLAN_IMAGE}/35138208/852864deaa9de65a3091062b99fde2b3f68f2bd7.jpg"] As is tradition with AMS2, the contents of the new DLCs will have a free trial period to give all users a chance to experience them and decide whether they are worth the purchase. By Friday August 1 they should become restricted to those who own the respective packages so don´t waste time checking them out! Users who for whatever reason encounter issues with V1.6.6 or who might still have a league race to run tonight can still remain on the previous V1.6.5.2 by right-clicking on AMS2 in the Steam library -> Properties -> Beta and selecting the previousbuild branch. [img src="{STEAM_CLAN_IMAGE}/35138208/1e119896b7f77205352c5c73ba5f0519b6aee488.jpg"]
V1.6.5.2 -> V1.6.6.0 CHANGELOG
CONTENT
Cars
Endurance Pack Pt3 DLC:
[*] Added Aston Martin Valkyrie Hypercar to GTP / LMDh class [/*][*] Added Aston Martin GT3 Evo to GTD / GT3 Gen2 class [/*][*] Added Aston Martin GT4 Evo to GT4 class [/*][*] Added Aston Martin GTE to GTE class [/*][*] Added Alpine A110 GT4 Evo to GT4 class [/*][*] Added Ligier LS2-R to Ligier European Series class [/*]
GENERAL
[*] Fixed one case of session stuck in end of qualifying or end of practice in a MP session [/*][*] Optimized the packet transfer that occurs during a host migration and around the end of MP sessions to reduce chances of mass disconnections or mass lags in that moment [/*][*] Prevented AI cars from using the same pitbox and garage as the player in single player mode [/*][*] FFB: Improved accuracy of steering axis torque arm calculation [/*][*] Fixed LiveTrack issue that caused incorrect track point update for rubber laying when vehicles accelerated [/*][*] Added option to disable collisions with dynamic trackside objects [/*][*] Updated tarmac shader for more realistic behaviour of fresnel reflection [/*]
[*] Minor adjustments to tread friction fade with velocity for Stock Car Brasil (all seasons), Copa Montana, Super V8, Sprint Race, Copa Classics, Mini Challenge, Lancer Cup [/*][*] Further minor tread adjustments to LMDh/ GTP, LMP2 (both gens), DPi, P1, GT3 (both gens), GT4, GT Open, Lambo Super Trofeo [/*][*] [/*]
VEHICLES
[*] Added customizable wheel rims for cars with livery overrides [/*][*] Disabled dirt effect texture on rear view mirrors which could also affect look of onboard rear displays [/*][*] Porsche 992 GT3R: Added extra dirt parameter to all paint and glass materials, modified override paint materials, updated cockpit LEDs lights emissivity and behaviour [/*][*] Adjusted cockpit POV height for Stock Car 2019 [/*][*] F-V10 Gen2: Fixed cockpit front rims size [/*][*] Chevrolet Corvette Z06.R: Added AP Racing logo on calipers [/*] [img src="{STEAM_CLAN_IMAGE}/35138208/ff68f7fcf032c5ea6640bc84cfe0b039613551ca.jpg"]

tracks

Tracks - Nurburgring 2025 DLC
[*] Added Nurburgring 2025 (Nordschleife, 24h & Grand Prix layouts) [/*]
TRACKS
[*] Nurburgring 2020: Complete 3D mesh & art overhaul (all layouts) [/*][*] Mosport: Fixed a gap in the terrain near the pit exit [/*][*] Termas Rio Hondo: Removed next lap penalty when cutting the final corner [/*][*] Donington National: Reduced threshold for track limit violation triggering next lap penalty when cutting the final corner [/*][*] Granja Viana : Corrected the track GPS location [/*][*] Minor adjustment to grip levels on wet racing line [/*]

features

UI & HUD

fixes

[*] Fixed weather selection dialog menu not correctly activating for some weather types [/*]
[*] Added suspension & chassis sound effect [/*][*] Fixed stereo engine audio issues in bumper/bonnet/roof cameras [/*][*] Fixed "Show helmet" option not muffling audio if helmet camera view is used [/*][*] BMW M4 GT3: fixed small amount of sound offset to the side in interior engine sound [/*]

physics

PHYSICS
[*] Improved AI logic to decide fuel amount in race grid and in race pitstops, to help mitigate issues where the AI does more pitstops than needed [/*][*] Improved AI decision about when to pit for fuel, to prevent issues where AI pits while still having too much fuel in tank [/*][*] Fixed an issue that could cause the AI to try to pitstop in the final lap instead of simply trying to cross the finish line [/*][*] Corrected some interclass inconsistencies in AI thresholds for pit strategy in Endurance classes and disabled reduced wear at high tire wear states [/*][*] GTP / LMDh: Further adjusted AI performance losses when tires are cold adjusted AI lateral movement rates for LMDh / GTP, LMP2, DPi, P1, GT3, GT4 classes [/*][*] Sigma G5 P1: Further adjusted AI downforce losses with DRS open to minimise risks of AI understeering off the road at high speed corners [/*][*] Further AI brake usage adjustments for F-Classics & F-HiTechs [/*][*] Jacarepagua Historic: Adjusted the fast line path at Curva Sul T6 and Lagoa T9, and recalculated the livetrack [/*]
AUDIO