BMW M4 Limited Series is part of Round 8, Season 2 of Porsche Mission R Update (v11.5), and can be accessed through the Round Hub button on the Home tab.
This Event is available to start from Sunday, August 20th 2023, until the Round ends on Monday, August 28th 2023 at 20:00 UTC. When the Round ends, the Event will be locked, unless the Event has been started before the end of the Round and 7-day term is not over. Acquiring the car unlocks the Event, and completion rewards are obtainable still.
Since the player has owned the car, the Replayable Limited Series actually becomes a regular Series, until the Round is expired.
The player is granted with free and instant car service and instant upgrades R&D, which are available within 1 Day (24 hours) after winning (finishing) any race, before the end of the Round[1].
Tier 4 and 24% completion can be reached without Gold upgrades.
Completing this series instantly cost 745 Gold.