New Reward Cars:

  • 1969 Chevrolet Camaro Jordan Luka 3 “Motorsport Edition” - Free gift for all players on 10th Sept
  • 1995 Mitsubishi Lancer Evolution III GSR - 20 points in Summer (Week 1)
    • Features rally body parts
  • 2022 Subaru WRX - 20 points in Autumn (Week 2)
    • Features Aeroflow Dynamics race body parts
  • (Returning to festival playlist for the first time) 2021 SIERRA Cars 700R - 40 points in Autumn (Week 2)
  • 1991 Toyota Chaser GT Twin Turbo - 20 points in Winter (Week 3)
    • Features widebody kit
  • 2013 Volvo C30 Polestar - 20 points in Spring (Week 4)

Monthly Rivals:

  • Plaza Circuit in the 1995 Mitsubishi Lancer Evolution III GSR
  • Lookout Circuit in the 2013 Volvo C30 Polestar

Misc:

  • New Game Mode - Hide & Seek
    • New badges & accolades
  • Evolving World - Horizon Stadium Maze
  • New Hide & Seek race suit
  • Bug Fixes
    • 2018 Lamborghini Aventador SVJ’s exhaust pipes are now correctly painted
    • Fixed an issue with the 2022 Cupra Formentor and the 2022 Cupra Tavascan where livery decals were applying to the steering wheel badge
    • Fixed the 2020 Lamborghini SC20’s brake caliper location and the rev red line
    • Fixed an issue with the 2021 BMW M3 with some inaccurate textures on the M Performance front, side, rear and wing carbon fiber upgrades
  • Series 39 Preview - Back to the 90’s
    • New Badges
    • New Clothing
    • New Cars
    • New Collectible

https://forza.net/news/forza-horizon-5-hidden-horizons