BMW 8 Series (G15) (2018) is 1168 mm (45.98 inch) longer, 304 mm (11.97 inch) wider and has 97 liters (3.43 ft3) bigger cargo space than Chevrolet Spark (2015).
Chevrolet Spark (2015) is 208 mm (8.19 inch) higher and 895 kg (1,973 lbs) lighter than BMW 8 Series (G15) (2018).