Mercedes S-Class (2017) is 1107 mm (43.58 inch) longer, 119 mm (4.69 inch) wider and has 100 liters (3.53 ft3) bigger cargo space than Seat Arona (2020).
Seat Arona (2020) is 62 mm (2.44 inch) higher and 1052 kg (2,319 lbs) lighter than Mercedes S-Class (2017).