Aston Martin DB9 (2015) is 29 mm (1.14 inch) wider and 27 kg (60 lbs) lighter than Cadillac XTS (2014).
Cadillac XTS (2014) is 413 mm (16.26 inch) longer, 218 mm (8.58 inch) higher and has 367 liters (12.96 ft3) bigger cargo space than Aston Martin DB9 (2015).