Just for info for anyone that might be interested.
If you don't feel like slogging along the German autobahn when travelling to central Europe, I just booked the bike and an overnight sleeper couchette for EUR 88.0 Dusseldorf to Vienna

- that's cheaper than the cost of the petrol!!!
Check out
A guide to Motorail trains in Europe: Taking your car by train or
ÖBB-Personenverkehr AG: Deutschland.
You do need to be able to speak a bit of German mind!
Cheers
J