When sourcing Car Mini Cameras, prioritize Resolution (at least 1080P Full HD) to ensure license plates and road signs are clearly visible. Look for a Wide-Angle Lens (140° to 170°) to minimize blind spots. Essential features include G-Sensor technology for automatic incident locking, Loop Recording to prevent storage overflow, and Super Night Vision (using Sony IMX sensors or similar) for low-light performance. For high-end applications, ensure the device supports H.265 compression to optimize storage space without sacrificing video quality.