It would be useful if we used this thread to record unmarked police cars etc.

I'll start with todays on the M3 northbound between J3 and J2. It was a dark blue Lexus 430. I was in a line of cars doing around 90mph and we moved over to let a fast moving Z3 past. This was quickly followed by the Lexus with its lights flashing. I was leaving M3 onto M25 so did not see the outcome.

There is also an umarked silver Skoda estate using the M3 and I have seen an unmarked Audi A4 pull a car over.

I have also noticed on some mornings that a mobile camera unit sets up on the bridge just north of Fleet services before junction 4A.

On Tuesday mornings, there is usually a mobile camera on the A33 between Reading and Basingstoke in the 50mph zone. He normally waits just south of the Little Chef, but he does move around.

Over to you. Lets save some points.