At the end of the day Lee.
You or the best of mechanics will not be able to predict if your engine may blow up doing a rolling road run.
It's pretty much like doing 125mph down the motorway... your car would be screaming at full blast... it could well go pop... many do.
If you've added any performance parts / remap etc then you've got more chance as the airflow will be different causing fuel mixtures to be increased and dependent on your map may run differently and the worst may happen.
On the flip side.
I drove my

all the way to Kefalonia (Greek Island) which was having a heat wave at the end of July, 1st week of August (the hottest point) and was actually 40degrees. I then drove from here all the way back through the Swiss Alps then through Germany and down the Autobahn at full blast. My car didn't miss a beat.
At the end of the day it's your choice... if anything does happen. I'd suggest that you forget you ever went to the RR and the car just happens to have done this down the road from there. Obviously for legal reasons and the fact I’m the site owner... I cannot condone any insurance claims that are not legitimate. So... I clearly would not advise you do anything fraudulent.