The SRT guys have a bunch of them. Seems that Hot Wheels was on their "S" list for releasing their model car before the reveal of the real car. SRT had them spring for a bunch of the models for them to give away or auction for worthy causes.
If you make nice to the SRT guys, maybe they can lead you to where you can obtain one.
Please do not go around pestering these guys for one, but you never know when one may come your way.
Much better story as to how you got one for your collection. Much better than saying you got yours at K-Mart.
Think Ralph has also been known to give them away as gifts to some of the charity recipients (kids) for some of the many charities SRT supports.
Believe this will go into the SRT trivia lore.
In the past VCA had commissioned Special models to provide as a thank you for Regional Presidents, Zone Directors or DAL's. Usually presented at annual meetings.
I have a VCA Zone Rendezvous Board Meeting in St. Louis 2005 Green RT/10. It is a one of 60 produced. These small tokens of appreciation are much treasured by the unexpected SWAG.
They also made a Maisto orange, or Copperhead 03 Vert with special inserts.
Often they become available for sale at VOI's.
Collecting Viper memorabilia is a fun and rewarding hobby.
I believe Maurice Liang and some others are donating many items to be showcased at the new Viper Cafe in the downstairs museum at the Chrysler Tech Center.