Citroen C5 (2017) is 645 mm (25.39 inch) longer, 43 mm (1.69 inch) wider, 155 mm (6.10 inch) higher and has 104 liters (3.67 ft3) bigger cargo space than Mercedes SLK-Class (2014).
Mercedes SLK-Class (2014) is 165 kg (364 lbs) lighter than Citroen C5 (2017).