Playground Games has revealed the content for Series 4 of Forza Horizon 6's Horizon Playlist, dubbed "Horizon Mascot Party," which runs from 13 August to 10 September. Alongside the usual rotation of prize cars, the update introduces a temporary time attack circuit built specifically for this four-week series, giving players a fresh challenge with the same leaderboard functionality as the game's permanent tracks.

The series offers ten cars to collect by earning seasonal points, mixing new additions with cars returning from Series 1, so players who joined more recently get a faster chance at otherwise hard-to-find vehicles. The centrepiece track addition is the mascot-themed Edamame Time Attack Circuit, set within the stadium, and new custom props have also been added for Event Lab and garage/estate customisation. Playground confirmed the next series, "British Automotive," will follow and celebrate classic and modern British cars.