If you look under the bonnet, that's where the frame of the bonnet will be I'd have thought. Never noticed that before , but I can't remember the last time I saw snow
A for 'Awesome' maybe? Had the car a few months now and that's what it is. Except for the weird handling sometimes, which from what I've read here is probably the run flat tyres.
Just where the thinner bonnet skin radiated heat more than the frame bits after you switched off as they are thicker. If it snowed when it was all already ambient temperature there would be no pattern.
