So we all know that one of the minor issues with Model S is the sub-standard cup holders. They're small, in the wrong place and there's only two of them. I can't offer any help with the placement or number but I've found an insulated mug that fits them like a dream.
http://www.hydroflask.com/products/18-oz-wide-mouth-stainless-steel-water-bottle-hydro-flip.html
They're vacuum insulated, hold 18oz and have a flip top that actually seals pretty darn well when closed.
http://www.hydroflask.com/products/18-oz-wide-mouth-stainless-steel-water-bottle-hydro-flip.html
They're vacuum insulated, hold 18oz and have a flip top that actually seals pretty darn well when closed.