Thanks to all who have been so knind as to answer my posts. Our hotel, Chateu Andre Zeitner, has advised us they are 20 km from Dijon and we should rent a car.
We have decided to catch the train from Paris, sfter staying there a few days. Is there a car rental agency in Dijon near the station? I haven't been able to identify one. We may have a problem since we are arriving Sunday afternoon.