Mercedes E-Class (2018) is 1132 mm (44.57 inch) longer, 75 mm (2.95 inch) wider and has 153 liters (5.40 ft3) bigger cargo space than Opel Adam (2014).
Opel Adam (2014) is 95 mm (3.74 inch) higher and 737 kg (1,625 lbs) lighter than Mercedes E-Class (2018).