Mercedes A-Class (2016) is 264 kg (582 lbs) lighter than Seat Leon ST (2020).
Seat Leon ST (2020) is 350 mm (13.78 inch) longer, 19 mm (0.75 inch) wider, 23 mm (0.91 inch) higher and has 129 liters (4.56 ft3) bigger cargo space than Mercedes A-Class (2016).