Can I just say that I've driven on the M8 from Edinburgh before?
No I'm sorry there isn't time. Sorry for the off-topic-ism, I just thought it was neat that I've actually been there once.
Here's a picture at the England/Scotland border, where I think the M6 turns into A74. I drove all the way from London to Edinburgh in a rental car with a manual transmission, first time driving on the wrong side of the road in the wrong side of the car. And I didn't hit anybody or anything!
Er... and now, Captain Non Sequitur will exit stage left.