Reduce Speed Now
I did...a little more drastically than the sign suggested perhaps.
Filthy rainy weather, man in front brakes sharply at 60mph, i brake sharply to avoid going into back of him and swerve. Car spins out, crosses (fortunately empty) outside lane, mounts verge at which point i turn again to avoid a head on with concrete wall, drivers side of car bounces off said wall (Hello whiplash...) and turns 90 degrees to end up where you see it here.
The insurance company are pricing repairs...I think it might be a write off...we shall see.
It should be noted, that fortunately I wasn't injured and noone else was involved.