BMW 8 Series (G14) (2018) is 68 mm (2.68 inch) wider than Toyota Avalon (2016).
Toyota Avalon (2016) is 115 mm (4.53 inch) longer, 121 mm (4.76 inch) higher, 354 kg (780 lbs) lighter and has 103 liters (3.64 ft3) bigger cargo space than BMW 8 Series (G14) (2018).
