BMW 8 Series (G14) (2018) is 543 mm (21.38 inch) longer and 121 mm (4.76 inch) wider than Hyundai Elantra GT (2017).
Hyundai Elantra GT (2017) is 132 mm (5.20 inch) higher, 604 kg (1,332 lbs) lighter and has 58 liters (2.05 ft3) bigger cargo space than BMW 8 Series (G14) (2018).