BMW 5 Series Touring (2015) is 628 mm (24.72 inch) longer, 101 mm (3.98 inch) wider, 97 mm (3.82 inch) higher and has 290 liters (10.24 ft3) bigger cargo space than Seat Leon (2020).
Seat Leon (2020) is 400 kg (882 lbs) lighter than BMW 5 Series Touring (2015).