BMW i8 (2016) is 45 mm (1.77 inch) wider and 390 kg (860 lbs) lighter than Mercedes S-Class Coupe (2017).
Mercedes S-Class Coupe (2017) is 337 mm (13.27 inch) longer, 121 mm (4.76 inch) higher and has 246 liters (8.69 ft3) bigger cargo space than BMW i8 (2016).
