BMW 8 Series (G15) (2020) is 157 mm (6.18 inch) longer and 92 mm (3.62 inch) wider than Mercedes C-Class (2014).
Mercedes C-Class (2014) is 101 mm (3.98 inch) higher, 379 kg (836 lbs) lighter and has 60 liters (2.12 ft3) bigger cargo space than BMW 8 Series (G15) (2020).
Size difference at a glance
BMW 8 Series (G15) (2020) is 3.4% longer than Mercedes C-Class (2014).
BMW 8 Series (G15) (2020) is 5.1% wider than Mercedes C-Class (2014).
BMW 8 Series (G15) (2020) is 7% lower than Mercedes C-Class (2014).
BMW 8 Series (G15) (2020) is 26.2% heavier than Mercedes C-Class (2014).
BMW 8 Series (G15) (2020) is 12.5% smaller in cargo space than Mercedes C-Class (2014).
Overall footprint
BMW 8 Series (G15) (2020) has a 8.6% larger overall footprint (length × width).