Kia Optima (2015) is 157 mm (6.18 inch) longer and 46 mm (1.81 inch) wider than Opel Astra Sports Tourer (2015).
Opel Astra Sports Tourer (2015) is 70 mm (2.76 inch) higher, 70 kg (154 lbs) lighter and has 30 liters (1.06 ft3) bigger cargo space than Kia Optima (2015).
