short of actually contacting Chrysler or Shelby, there aren't any other ways that I can think of.
Go to dodge.com and click on contact us down at the bottom, then click customer assistance, then send us an email and fill out the form. They can help you with your question. That's how I got hold of my build sheet.

If it'd doesn't have any of the identification plaques or look like the ones in the pics on that page I gave a link for, I'd think its a fake.

 

Go to a dealer and have the parts/service pull your VIN (build sheet) and see what it says.

 

Dealer only there was a site that was doing it but they stopped

 

you can still email chrysler through dodge.com like I listed above. That's how i got mine and they responded within 24hrs

 

my brother did that it took them a week to respond if a dealer is close just stop by and have them run the vin its FREE lol

 

Both should be of assistance...the dealer and the website. They should be able to answer most of your questions with your VIN.

 

Thanks