'
Nothing substantial but the subject car has been mentioned here in the past including this thread when Anders saw it back in '05...
https://www.yenko.net/forum/showthread.php?t=82916
Different cars but a few other Non RS factory Black 9561 examples we've looked at here over the years include cars delivered by Maxton Chevrolet + McDorman Chev also this Mac's Chevrolet 2005 SYC Feature...
https://www.yenko.net/forum/showthread.php?p=774057
Looking forward to learning more about 124379N647928!
~ Pete