Cadillac STS (2017) is 549 mm (21.61 inch) longer and 99 mm (3.90 inch) wider than Chevrolet Sonic (Sedan) (2016).
Chevrolet Sonic (Sedan) (2016) is 63 mm (2.48 inch) higher, 491 kg (1,082 lbs) lighter and has 34 liters (1.20 ft3) bigger cargo space than Cadillac STS (2017).
Size difference at a glance
Cadillac STS (2017) is 12.4% longer than Chevrolet Sonic (Sedan) (2016).
Cadillac STS (2017) is 5.7% wider than Chevrolet Sonic (Sedan) (2016).
Cadillac STS (2017) is 4.2% lower than Chevrolet Sonic (Sedan) (2016).
Cadillac STS (2017) is 38.7% heavier than Chevrolet Sonic (Sedan) (2016).
Cadillac STS (2017) is 8.1% smaller in cargo space than Chevrolet Sonic (Sedan) (2016).
Overall footprint
Cadillac STS (2017) has a 18.8% larger overall footprint (length × width).
Side-by-side size
Length
Width
Height
Weight
Cargo space
Cadillac STS (2017) Chevrolet Sonic (Sedan) (2016)
