Here are the Car Mechanic Simulator 2021 System Requirements (Minimum)
CPU: Intel Core i5 4690 / AMD Ryzen 5 1500X
RAM: 4 GB
VIDEO CARD: NVidia GeForce GTX 760 2GB
DEDICATED VIDEO RAM: 2048 MB
PIXEL SHADER: 5.0
VERTEX SHADER: 5.0
OS: Windows(64-bit) 7 / 8 / 10
FREE DISK SPACE: 35 GB

Car Mechanic Simulator 2021 Recommended Requirements
CPU: Intel Core i5 6600K / AMD Ryzen 7 1700X
RAM: 8 GB
VIDEO CARD: NVidia GeForce GTX 1070 8GB
DEDICATED VIDEO RAM: 8192 MB
PIXEL SHADER: 5.1
VERTEX SHADER: 5.1
OS: Windows(64-bit) 7 / 8 / 10
FREE DISK SPACE: 35 GB