Any idea what the dimensions of the Temperature Controlled Cupholders are for a 2021 GLE? Specifically the height from the bottom to the narrowest part and also top opening? And the width at the widest internal section--with the prongs all the way against the sides? My ruler fails me...

Not sure of exact dimensions (and am thousands of miles from my car at the moment so can't check), but I tried several different sizes before finding a 32 oz SS water bottle that fit snug. It's specs say width is 3.54". I also have a slightly smaller one that fits good. Anything smaller will rattle around. I scratch my head wondering why MB thought they needed to be so big.