Kia K5 (2019) is 156 mm (6.14 inch) longer and 45 mm (1.77 inch) wider than Opel Astra Sports Tourer (2020).
Opel Astra Sports Tourer (2020) is 69 mm (2.72 inch) higher, 21 kg (46 lbs) lighter and has 90 liters (3.18 ft3) bigger cargo space than Kia K5 (2019).
