So what all flash files are available on autels servers? I know of the chevy tahoe but that's it

 I only bought the ms908, not the pro because from what I researched, they had flash files for Chevy Tahoe, Bentley, and bugatti. So only one of the three would I benefit from as I am in Chicago, IL area. So I would like to purchase the pro but why? It does nothing different then what i have now. I have had my unit for a year now and no progress has been made.