Ten cars. Four automotive decades. One long-overdue AI fix. Playground Games opened Series 2 of Forza Horizon 6 today, June 18, at 10:30 AM ET, and the update is bigger than a typical seasonal refresh.
Four decades of cars, one four-week window
The Horizon Decades theme organizes Series 2 around 40 years of automotive history, one era per week. Summer (through June 25) spotlights 1980s machines. Autumn (June 25 to July 2) moves to the 1990s. Winter (July 2 to July 9) covers the 2000s. Spring (July 9 to July 16) closes with the 2010s. Every season resets at 14:30 UTC on Thursday.
Players can earn up to 55 Festival Playlist points per season, totaling 220 across the full series. The headline rewards are the 1993 Porsche 911 Turbo S Leichtbau at 80 series points and the 2018 Lotus Exige Cup 430 at 160 points. Three of the ten reward vehicles are entirely new to the Horizon franchise, which is worth noting for anyone who has been collecting across previous entries.
The Car Pass adds four more vehicles on a weekly drip: the 2023 Audi R8 Coupé V10 GT RWD arrives today, followed by the 1974 Mazda Mad Mike 808 Wagon "FURSTY" on June 25, the 1998 Nissan Skyline GT-R 40th Anniversary on July 2, and the 2023 Toyota GR Corolla on July 9. A new temporary Car Meet is also opening at the Hokubu Time Attack Circuit as part of the Evolving World system.
If you want a breakdown of every vehicle available in the game, the Forza Horizon 6 car list guide covers the full roster with unlock methods and top picks by class.
The Trial is back, and it hits hard
The most anticipated addition is the return of The Trial, the co-op multiplayer mode from Forza Horizon 5 that pits six human players against six Drivatar opponents locked at Unbeatable difficulty across a best-of-three championship. It is the single largest point source available in any given week at 10 series points for completion.
Access requires the Gold Wristband progression gate. Players who have not yet reached that milestone cannot enter. Playground bringing The Trial back this early in FH6's post-launch cycle signals a clear intent to keep competitive co-op active from the start, rather than treating it as a late-season carrot.
What the June 15 Drivatar patch actually fixed
Series 2 arrived alongside a patch that addressed two documented problems with FH6's Drivatar AI system, both of which had been generating consistent player frustration since the May 19 launch.
The first issue: in street races, Drivatars were launching off the start line with acceleration values the game's physics engine does not support for AI-controlled vehicles, opening gaps that no amount of player skill could close from the opening seconds. The second issue: in wet-weather events, Drivatars had near-infinite traction, making rain races effectively unwinnable at higher difficulty settings regardless of tuning.
Here's the thing about why these bugs existed in the first place. Drivatar, developed by Microsoft Research Cambridge and in active development since the original Forza Motorsport in 2005, does not use traditional rule-based AI. It trains a neural network on real player telemetry, braking points, throttle timing, cornering habits, and uses that model to generate driving commands in real time. The tradeoff is that machine-learning models can generalize incorrectly in edge cases when physical constraints like wet tarmac grip are not weighted heavily enough against learned behavior patterns. The patch tightens those physics constraints specifically for race-start and wet-surface scenarios.
Two quality-of-life additions came with the same patch: a Roads Driven percentage tracker now appears on the regional overview screen, and the Horizon Play experience point curve between levels 26 and 100 has been rebalanced, cutting grind time for the "Maxed Out" achievement significantly.
What this means for FH6's live-service run
Forza Horizon 6 launched on May 19 to a peak of 172,093 concurrent players on Steam, more than double Forza Horizon 5's all-time Steam high of 81,096. Series 2 is the first real test of whether Playground can sustain that momentum through a seasonal cadence.
The pressure builds later this year. Gears of War: E-Day drops October 6 and Grand Theft Auto VI arrives November 19, both on Xbox Game Pass, both competing for the same player hours FH6 currently holds. Bungie's exit from live-service updates for Destiny 2 earlier this month is a reminder of how quickly that model can unravel without consistent content delivery.
Series 2's combination of The Trial, a decade-spanning reward structure, and a meaningful AI fix suggests Playground has a clear picture of what keeps its audience engaged. The question is whether that cadence holds through Q4.
Forza Horizon 6 runs on Xbox Series X/S and PC via Xbox Game Pass Ultimate and PC Game Pass. A PS5 version is confirmed but undated. For everything you need heading into Series 2, the full Forza Horizon 6 guide collection has you covered.
