Mein Got! An almost sensible answer from you there Si! Danke.
I will probably run them until they break if what you say is true TBH.
The Aston is staying as an ornament on my desk I'm afraid. After some of the paint removing car/wall interfaces of the weekend I suspect that it would be smashed to bits in no time. Besides, it sits nicely with the Italian Job minis, the 007 Lotus Esprit (submarine car) and the 4" plastic Boba Fett figure.