Kia Optima Sportswagon (2018) is 462 mm (18.19 inch) longer and 74 mm (2.91 inch) wider than Mercedes B-Class (2014).
Mercedes B-Class (2014) is 87 mm (3.43 inch) higher, 431 kg (950 lbs) lighter and has 46 liters (1.62 ft3) bigger cargo space than Kia Optima Sportswagon (2018).
Size difference at a glance
Kia Optima Sportswagon (2018) is 10.5% longer than Mercedes B-Class (2014).
Kia Optima Sportswagon (2018) is 4.1% wider than Mercedes B-Class (2014).
Kia Optima Sportswagon (2018) is 5.6% lower than Mercedes B-Class (2014).
Kia Optima Sportswagon (2018) is 30.9% heavier than Mercedes B-Class (2014).
Kia Optima Sportswagon (2018) is 9.5% smaller in cargo space than Mercedes B-Class (2014).
Overall footprint
Kia Optima Sportswagon (2018) has a 15.1% larger overall footprint (length × width).
Side-by-side size
Length
Width
Height
Weight
Cargo space
Kia Optima Sportswagon (2018) Mercedes B-Class (2014)
