BMW 6 Series Gran Turismo (2018) is 127 mm (5.00 inch) longer, 161 mm (6.34 inch) higher, 345 kg (761 lbs) lighter and has 244 liters (8.62 ft3) bigger cargo space than Porsche Taycan (2020).
Porsche Taycan (2020) is 64 mm (2.52 inch) wider than BMW 6 Series Gran Turismo (2018).