GMC Sierra 3500HD (2018) is 1001 mm (39.41 inch) longer, 221 mm (8.70 inch) wider, 442 mm (17.40 inch) higher and has 1451 liters (51.24 ft3) bigger cargo space than Opel Astra Sports Tourer (2020).
Opel Astra Sports Tourer (2020) is 1240 kg (2,734 lbs) lighter than GMC Sierra 3500HD (2018).
