Have been looking at a few possible non-Ring drives, for those wanting to do something else or when the track is closed for the day and we're waiting until evening:
The first one is a route from Koblenz down the Mosel Valley to Trier, then up the Lux/Ger border and cross the River Our to Bitburg then back to Nurburg. Drive time approx 5h30mins
Second is a trip over to see Spa in Belgium (could do this on way home?) its about 1h45 mins from Nurburg
Third is a drive down to Mulhouse which is the French Motor Museum, approx 4 hours: http://www.collection-schlumpf.com/en/schlumpf/
Could also go through the Black Forest on this one, but would make it further