All I will say is Blue Devil is out; who knows, maybe like the person it was going to be named after, who will possibly be out too someday.
The powertrain units are in normal looking Vettes and hard to distinguish from a normal ZO6, and are being driven on the roads and tested in Germany. There will be some with extremely black out rear windows, to hide the electronic testing equipment that is contained in the rear of the vehicle, and with a breakout box on a bracket over the passenger seat.
So, if someone sees a ZO6 driving around with extremely blacked out windows in the rear, and a large electronic device sitting in the passenger seat with approximately 50+ LEDS and a ton of switches. (Should I say they will probably have the infamous MI "M" plate.) It might be one...
Powertrain mules do not require extensive camo to hide their appearance, only body mules used for new style bodies. The differences in the body will have camo (basically, a bunch of large car bras). Good example, there are about six H3s running around the country with test engines and you can't tell the difference between these vehicles and a normal off the lot H3, unless you notice the plate and look inside. However, there are plenty of test vehicles with existing powertrains running around with "M" plates too; that are used by engineering for testing, analysis, and joy rides by bored engineers.
As to the powertrain, someone is right, someone is wrong.
When they do hit the lots, I bet everyone will be sold months prior to production. As to driver's training course, I find that just some cool humor. Does GM require off-road driver's training for H1s?
And in regard to the photo of the "thing," take a close look at the rims, there will never be a Vette with over 600 HP manufactured with only four lugs.