I don’t think there is any evidence to point you to for the Luton fire. If you had been watching it unfold you may have caught stuff but by lunch time everything had been taken down.
A member of the fire brigade stated it was an electric vehicle that had started the blaze but that vanished within a couple of hours. The diesel Range Rover looks more like a hybrid if you study the pics (if they are still about) and the raging fire is exactly where the traction
battery would be on a hybrid.
Folks make their own mind up, I am not anti-ev and have a hybrid, I am increasingly seeing stuff that makes me think we are being spoon fed lies though