Since my Coupe CC was serviced earlier in the year I've been experiencing some rough running and I wondered if you guys had any suggestions or have had similar problems. Unfortunately the car hasn't been garaged over the last few months, so it stands on the drive overnight. When there has been a rain shower overnight, the car runs roughly on the journey to work the following morning. The only way I can describe it is that it feels like it running on less than eight cylinders, so kinda vibrating. It's very pronounced at speeds above 50mph. However, if I pull over and rev the car in neutral it appears to be running very sweetly. So, the roughness only appears with the transmission engaged and the car moving. Anyone have any thoughts? The rough running clears after about ten miles. thanks.