BMW 8 Series (G14) (2018) is 7 mm (0.28 inch) wider and 67 kg (148 lbs) lighter than Lexus RX (2016).
Lexus RX (2016) is 46 mm (1.81 inch) longer, 381 mm (15.00 inch) higher and has 171 liters (6.04 ft3) bigger cargo space than BMW 8 Series (G14) (2018).