Keith of CorvetteBlogger has reminded us of a blog he wrote on January 1, 2007, pertaining to the trademark application made by GM for the ZR1 nomenclature.
At the time, Keith wrote, "Now it would be irresponsible speculation on my part to think that GM would have an interest in using the ZR-1 RPO code for the Blue Devil / SS Corvette."
That speculation in January is now at odds with the recent announcement from Motor Trend. The plot thickens.