BMW 4 Series (2020) is 105 mm (4.13 inch) longer, 10 mm (0.39 inch) wider and has 146 liters (5.16 ft3) bigger cargo space than Cadillac ATS Coupe (2015).
Cadillac ATS Coupe (2015) is 9 mm (0.35 inch) higher and 50 kg (110 lbs) lighter than BMW 4 Series (2020).