Overtake the opposition on a variety of ovals in the NASCAR Series, where every lap brings new thrills and unexpected twists. Available under the Featured tab all throughout American Thunder Month in Forza Motorsport, while also returning in our future Featured Multiplayer Series rotations.
7 November 2024–9 January 2025
NASCAR Series in Featured Multiplayer
Spec Series
Spec racing is fully homologated to ensure an even playing field. That means all the cars racing are identical and have been tuned by us to provide the fairest and most competitive experience possible.
You can still earn CarXP from Spec Series events to level up your car later, however for these events you will not be at a disadvantage if your car is Level 1 and an opponent car is at Level 50 – if you’re playing in the Spec series, they will be set to a pre-defined build and tune to keep a completely even challenge.
Spec Series rotate with new events every week.
