evo should have pulled over to let the pug pass ages before that - if ever someone is on your tail for that long or able to drop back and catch at will... they are quicker than you.
had the same at cadwell with a twat in his focus RS - the lines were appalling, dangerous and nearly cut me up a few times. I then went out with the instructor and had the same problem. The instructor "had a few words with him" afterwards - and strangley didnt make it out onto the track again that day
Lesson - Look in your mirrors if someone has catch you, they are quicker !!!