Kia Optima (2017) is 56 mm (2.20 inch) higher, 390 kg (860 lbs) lighter and has 110 liters (3.88 ft3) bigger cargo space than Mercedes S-Class Coupe (2017).
Mercedes S-Class Coupe (2017) is 171 mm (6.73 inch) longer and 37 mm (1.46 inch) wider than Kia Optima (2017).
Size difference at a glance
Kia Optima (2017) is 3.4% shorter than Mercedes S-Class Coupe (2017).
Kia Optima (2017) is 2% narrower than Mercedes S-Class Coupe (2017).
Kia Optima (2017) is 4% taller than Mercedes S-Class Coupe (2017).
Kia Optima (2017) is 20% lighter than Mercedes S-Class Coupe (2017).
Kia Optima (2017) is 27.5% larger in cargo space than Mercedes S-Class Coupe (2017).
Overall footprint
Mercedes S-Class Coupe (2017) has a 5.6% larger overall footprint than Kia Optima (2017) (length × width).
