CarsBMW M4 V4.1 -UPGRADE- 1.38.X October 9, 2020October 8, 2020 - Leave a Comment Bmw M4 V4.1 for American truck simulator – Upgrade to ATS 1.38 – Fixed sound Credits: KadirYagiz 5/5 - (1 vote) Download mod File File size ATS_Bmw_M4_V4.1_1.38_Upgrade_By_kadiryagiz 63 MB Share mod: