Chevrolet TrailBlazer (2019) is 194 mm (7.64 inch) higher, 90 kg (198 lbs) lighter and has 206 liters (7.27 ft3) bigger cargo space than Kia Optima (2018).
Kia Optima (2018) is 430 mm (16.93 inch) longer and 50 mm (1.97 inch) wider than Chevrolet TrailBlazer (2019).