Lexus GS (2014) is 152 mm (5.98 inch) longer and 7 mm (0.28 inch) wider than Opel Astra Sports Tourer (2015).
Opel Astra Sports Tourer (2015) is 85 mm (3.35 inch) higher, 135 kg (298 lbs) lighter and has 110 liters (3.88 ft3) bigger cargo space than Lexus GS (2014).