Lexus IS (2016) is 532 mm (20.94 inch) longer, 127 mm (5.00 inch) higher and has 56 liters (1.98 ft3) bigger cargo space than Mercedes SLK-Class (2014).
Mercedes SLK-Class (2014) is 6 mm (0.24 inch) wider and 200 kg (441 lbs) lighter than Lexus IS (2016).