Cadillac CTS (2017) is 22 mm (0.87 inch) wider than Kia Optima Sportswagon (2015).
Kia Optima Sportswagon (2015) is 47 mm (1.85 inch) longer, 17 mm (0.67 inch) higher, 161 kg (355 lbs) lighter and has 106 liters (3.74 ft3) bigger cargo space than Cadillac CTS (2017).