Cadillac STS (2018) is 124 kg (273 lbs) lighter than Jaguar XJ-Series (2015).
Jaguar XJ-Series (2015) is 287 mm (11.30 inch) longer, 61 mm (2.40 inch) wider, 5 mm (0.20 inch) higher and has 42 liters (1.48 ft3) bigger cargo space than Cadillac STS (2018).