We're planning 2 DAYS to drive there any suggestions for stopover
Well Beaune is about 5.5 hours and Lyon is about 7 hours from Calais without stops. This is assuming autoroute all the way. So anywhere between is where we often stop. Both Bourgogne and Beaujolais are lovely areas. Then the next day you can drive either via the Rhone Valley or via Grenoble and closer to the mountains.
tplus the OP wants to do the journey over 2 days.