BMW 8 Series (G15) (2018) is 353 mm (13.90 inch) longer and 172 mm (6.77 inch) wider than Suzuki Ciaz (2014).
Suzuki Ciaz (2014) is 144 mm (5.67 inch) higher, 884 kg (1,949 lbs) lighter and has 90 liters (3.18 ft3) bigger cargo space than BMW 8 Series (G15) (2018).