BMW 7 Series (2016) is 135 mm (5.31 inch) longer, 100 mm (3.94 inch) higher, 340 kg (750 lbs) lighter and has 150 liters (5.30 ft3) bigger cargo space than Porsche Taycan (2020).
Porsche Taycan (2020) is 64 mm (2.52 inch) wider than BMW 7 Series (2016).