Just been looking at the shell helix racing website, and apparently tricky dicky is doing his own versions of the XR range:
DICK JOHNSON PERFORMANCE CARS
Watch this space for exiting opportunities to purchase the road cars driven by Dick, Steven, Max and the DJR team, these low kilometre cars will suit any new car buyer and will be advertised exclusively on this site for the first month.
Coming soon ....A very special range of high performance cars built by DJR in very limited numbers. The team at DJR have been working to enhance the current BA XR Falcon range to deliver an XR 6 Turbo and an XR 8 to 300kw spec.
Each car will be individually numbered and hand built to order with unique DJR styling.
Taken from http://www.shellhelixracing.com/tl_news.asp