BMW 4 Series (2020) is 110 mm (4.33 inch) longer and 38 mm (1.50 inch) wider than Vauxhall Astra (Sedan) (2014).
Vauxhall Astra (Sedan) (2014) is 117 mm (4.61 inch) higher, 195 kg (430 lbs) lighter and has 20 liters (0.71 ft3) bigger cargo space than BMW 4 Series (2020).