BMW 5 Series Gran Turismo (2017) is 59 mm (2.32 inch) longer, 52 mm (2.05 inch) wider, 45 mm (1.77 inch) higher and has 78 liters (2.75 ft3) bigger cargo space than INFINITI Q70 (2015).
INFINITI Q70 (2015) is 177 kg (390 lbs) lighter than BMW 5 Series Gran Turismo (2017).