BMW 4 Series (2020) is 10 mm (0.39 inch) wider, 407 kg (897 lbs) lighter and has 50 liters (1.77 ft3) bigger cargo space than Cadillac CTS Wagon (2014).
Cadillac CTS Wagon (2014) is 109 mm (4.29 inch) longer and 90 mm (3.54 inch) higher than BMW 4 Series (2020).