BMW 4 Series (2015) is 1520 kg (3,351 lbs) lighter than Ram 3500 (2017).
Ram 3500 (2017) is 1888 mm (74.33 inch) longer, 147 mm (5.79 inch) wider, 641 mm (25.24 inch) higher and has 1369 liters (48.35 ft3) bigger cargo space than BMW 4 Series (2015).