The Winter Season introduced as part of the Series 15 update is held from November 7, 2019 at 2:30 pm (UTC) to November 14, 2019 at 2:30 pm (UTC).
Players must complete any seasonal event and any Forzathon challenge to earn progress within the season and the overall series. Finished seasonal events and Forzathon challenges are marked in gold.
Individual rewards are earned by completing most seasonal event and Forzathon challenges. Players receive a Season Completion Bonus for having a 50% and an 80% seasonal progress respectively.
|The Triumvirate||The Trial||Peugeot 205 T16 Forza Edition (Hard To Find Car)|
|Assault On The Control Room||Showcase Remix||Super Wheelspin|
|Winter Games||Seasonal Playground Games||MINI X-Raid John Cooper Works Buggy (Hard To Find Car)|
|Calton Hill||Seasonal PR Stunt (Speed Trap)||Super Wheelspin|
|Mudkicker's Showjump||Seasonal PR Stunt (Danger Sign)||Super Wheelspin|
|Oldweir||Seasonal PR Stunt (Speed Zone)||Super Wheelspin|
|Winter Community Championship||Seasonal Championship||Subaru Impreza WRX STi (2004) (Hard To Find Car)|
|Magic Number||Seasonal Championship||Volkswagen Type 3 1600 L (Hard To Find Car)|
|Power Struggle||Seasonal Championship||BMW M3 GTS (Hard To Find Car)|
|Upgrade Heroes||Horizon Story|
|1939 Auto Union Type D||Monthly Rivals (Post a clean lap to complete)|
|1939 Mercedes-Benz W154||Monthly Rivals (Post a clean lap to complete)|
|Online Adventure||Series 16 (Qualify to complete)|
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The Weekly Challenge starts with Chapter 1 and is progressed consecutively. Daily Challenges are unlocked with every following day of the Season, but expire after a certain amount of time.
Forzathon Points earned from the Challenges can be spent at the Forzathon Shop. Its selection of items lasts for the duration of the season.
|Weekly Challenge: "Executive Saloons"|
|Chapter 1 - Executive Saloons||Own and drive the 2005 BMW M3 or the 2006 Audi RS4, top contenders in the German executive car market|
|Chapter 2 - A Step Ahead||Pick your favourite and prove it's the fastest by earning 12 stars from Speed Traps in either the BMW M3 '05 or the Audi RS 4 '06|
|Chapter 3 - Track Day||Take your car to the races and win 3 Road Series Events in either the BMW M3 '05 or the Audi RS 4 '06|
|Chapter 4 - Impressive Performance||Demonstrate your car's handling by earning drift and pass skills to get 3 Showoff Skill combos in either the BMW M3 '05 or the Audi RS 4 '06|
|#1||Opposite Lock||Earn 2 Awesome Drift or E-Drift Skills|
|#2||Give Chase||Earn 3 Drafting Skills|
|#3||Just Warming Up||Complete a Road Sprint Event|
|#4||A Bed Of Roses||?|