BMW 5 Series (2019) is 121 mm (4.76 inch) higher, 425 kg (937 lbs) lighter and has 204 liters (7.20 ft3) bigger cargo space than Porsche Taycan (2020).
Porsche Taycan (2020) is 20 mm (0.79 inch) longer and 99 mm (3.90 inch) wider than BMW 5 Series (2019).