Seat Leon (2020) is 21 mm (0.83 inch) wider and 5 mm (0.20 inch) higher than Subaru Impreza GT (2017).
Subaru Impreza GT (2017) is 257 mm (10.12 inch) longer, 395 kg (871 lbs) lighter and has 78 liters (2.75 ft3) bigger cargo space than Seat Leon (2020).