The Austrian Rail Service OBB offers a NightJet train that allows you to take you car with you but travel by train. For example you can drive your car to Vienna get on the train in the evening, sleep on the train and arrive rested in the morning in Hamburg, Germany for the next leg of your Journey.

Destination countries include:

Austria
Germany
Italy
Switzerland
Croatia
Slovenia

http://www.nightjet.com/en/reiseziele.html