If the provider offers a Checksum (MD5 or SHA-256) , verify it after downloading to ensure the file hasn't been tampered with or corrupted during the transfer.
Use updated versions of 7-Zip or WinRAR to ensure compatibility with modern compression algorithms used in the S12 archive. User Experience Expectations Download S12 rar
Knowing if it relates to a car model , software version , or firmware would help in providing a more targeted review. If the provider offers a Checksum (MD5 or