White 350 westbound near Baslow in Peak District, Sunday around 6.30pm

[Blue Straggler]

Flashed me (presumably just to say hello!), I didn't notice until too late to respond. Me in azure blue 350 going in opposite direction.

 

Also a silver one down the M1, I flashed it shortly before exiting on J24A but no response

 

I actually don't think I've seen two on the road in a single day before!