The Summer Season introduced as part of the Series 15 update is held from October 24, 2019 at 2:30 pm (UTC) to October 31, 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 Most Iconic Trio||The Trial||Ferrari F40 Competizione|
|Motocross Purposes||Showcase Remix||Haunted House|
|Summer Games||Seasonal Playground Games||Rossion Q1 (Hard To Find Car)|
|Hillside||Seasonal PR Stunt (Speed Zone)||Super Wheelspin|
|Cat Bells||Seasonal PR Stunt (Speed Trap)||Super Wheelspin|
|Thicket||Seasonal PR Stunt (Drift Zone)||Super Wheelspin|
|Summer Community Championship||Seasonal Championship||Italdesign Zerouno (Hard To Find Car)|
|Marathon Runners||Seasonal Championship||Modern Race Suit Grey|
|Battle Of The Brands||Seasonal Championship||Chevrolet Nova Super Sport 396 Forza Edition (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)|
The Forzathon event features the "American Automakers" Weekly Challenge for the 2016 Dodge Viper ACR and 2015 Chevrolet Corvette Z06, as well as seven Daily Challenges with Skill and event objectives.
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: "American Automakers"|
|Chapter 1 - Weight Vs. Power||Own and drive the 2016 Dodge Viper ACR or the 2015 Chevrolet Corvette Z06, rivals since 1992|
|Chapter 2 - Powered By Lighting||Both cars have remarkably similar power figures despite different engines. Win 5 Drag Strip Events in either the Corvette '15 or the Dodge Viper '16|
|Chapter 3 - Louder And Faster||Demonstrate that your car is better on the streets by winning 3 Street Scene Events in the Corvette '15 or the Dodge Viper '16|
|Chapter 4 - Supercharger||Win the arm wrestle once and for all by earning 500,000 Skill Score in either the Corvette '15 or Dodge Viper '16|
|#1||Over Nine Thousand||Earn 1 Great Wreckage Skill|
|#2||Three Of A Kind||Earn 3 Triple Pass Skills|
|#3||Long Haul||Drive for a total of 15 miles|
|#4||Getting Sideways||Earn 2 stars in total from Drift Zones|
|#5||Barrel Of Laughs||Earn 2 Ultimate Wreckage Skills|
|#6||Drift-Zoku||Earn 2 Ultimate Drift or E-Drift Skills|
|#7||Out Of My Way!||Closely overtake while racing to earn 2 Pass Skills|