I will be driving from Mammoth to Las Vegas in first week of December. While, I was going through different forums many people did it in one day from morning to evening and covered must visit points in between, which are - Mosaic Canyon (may be an hour), Devil's Cornfield (will take some walking time), Furnace Creek, Zabriskie Point, Mesquite San Dunes (dunes will take some walkable time), Badwater Salt Flats and Dante's View.
As per google maps, it comes around 400 miles. Am I missing any 'must visit' point, which I am missing here ? Is it doable ? If there are more places to visit, then I can plan to stay in between for one night. Please suggest what are other options or should I simply drive down to Vegas and give add night to Vegas. This is so big park/area that I am confused in its order and what should I cover.