Chevrolet TrailBlazer (2019) is 199 mm (7.83 inch) higher, 120 kg (265 lbs) lighter and has 206 liters (7.27 ft3) bigger cargo space than Kia Optima (2016).
Kia Optima (2016) is 430 mm (16.93 inch) longer and 50 mm (1.97 inch) wider than Chevrolet TrailBlazer (2019).