Hyundai Sonata (2015) is 50 mm (1.97 inch) longer and 676 kg (1,490 lbs) lighter than Mercedes M-Class (2014).
Mercedes M-Class (2014) is 62 mm (2.44 inch) wider, 312 mm (12.28 inch) higher and has 228 liters (8.05 ft3) bigger cargo space than Hyundai Sonata (2015).
