Multi-Function Cupholder Insert

Author-designed centre-console insert for W212 cars, physically shown in use with cups and a phone. The source supplies variants for 14 mm, 20 mm and 84 mm-wide phone cases plus can-stabilising rings, coin and card storage, specifies 24×3.5 mm felt pads for retention, and warns not to use PLA in summer cabin heat. Select only the matching variant, use heat-resistant material, fit the felt pads, and verify containers, cards and phone remain secure without obstructing controls.