Audi S4 (2018) has 5 liters (0.18 ft3) bigger cargo space than Opel Insignia Grand Sport (2017).
Opel Insignia Grand Sport (2017) is 152 mm (5.98 inch) longer, 21 mm (0.83 inch) wider, 44 mm (1.73 inch) higher and 385 kg (849 lbs) lighter than Audi S4 (2018).
