BMW 8 Series (G14) (2018) is 149 mm (5.87 inch) longer and 53 mm (2.09 inch) wider than Tesla Model 3 (2017).
Tesla Model 3 (2017) is 104 mm (4.09 inch) higher, 193 kg (425 lbs) lighter and has 75 liters (2.65 ft3) bigger cargo space than BMW 8 Series (G14) (2018).