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Cadillac CT6 Trunk Space

The 2020 Cadillac CT6 has 15 cu ft of trunk space: room for 2 checked suitcases or 7 carry-ons.

EPA interior volume · 15 cu ft trunk · 110 cu ft cabin · measured 2020 · Updated Nov 4, 2026
Quick answer

Among 118 sedans and coupes with a similar-sized cabin, the average is 15.6 cu ft, so the CT6 sits right on it.

What actually fits in a CT6

It has stayed at about 15 cu ft in every model year we hold, 2016 to 2020.

FIG.01·Cadillac CT6 — what fits in the trunk
What you are loadingHow many fitEach item
Checked suitcases227 × 21 × 14″ — 4.6 cu ft
Carry-on cases722 × 14 × 9″ — 1.6 cu ft
Grocery bags12about 1 cu ft each
Golf bags2full set, about 5 cu ft
Folded strollerFitsabout 6 cu ft
ROWS 5·SOURCE ForCar, computed from EPA cargo volume

Cabin or cargo — where the space went

FIG.02·Cadillac CT6 — cabin versus cargo
SpaceVolumeShare of total
Passenger cabin110 cu ft88%
Cargo area15 cu ft12%
Total interior125 cu ft100%
ROWS 3·SOURCE EPA interior volume

Against cars with a similar cabin

FIG.03·Cadillac CT6 against similar cars
MeasureThis car118 sedans and coupes with a similar cabinDifference
Cargo volume15 cu ft15.6 cu ft-0.6 cu ft
In checked suitcases22+0
ROWS 2·SOURCE ForCar, computed across cars of similar cabin size

Cars with the same room

Against its closest rivals: the Jaguar XJ has 18 cu ft, the Kia K900 15 cu ft and the BMW Alpina 14 cu ft, next to 15 cu ft for the CT6.

FIG.04·Cadillac CT6 — cars with the same cargo room
CarTrunk volumevs Cadillac CT6Checked suitcasesMeasured
Nissan Altima15 cu ft0 cu ft22026
Toyota Camry15 cu ft0 cu ft22026
Hyundai Genesis15 cu ft0 cu ft22016
Kia K90015 cu ft0 cu ft22020
Subaru Legacy15 cu ft0 cu ft22025
Infiniti Q7015 cu ft0 cu ft22019
ROWS 6·SOURCE EPA interior volume + ForCar
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Everything on the Cadillac CT6
Recalls15 campaignsFuel economy28 mpg bestReliability4.0/5Common problems77 complaintsCheck a VINAgainst this exact buildDimensionsSize, weight, generationsUsed prices95 listingsWhat yours is worthValue by year & mileageInsurance costEstimated per yearWindow stickerOriginal Monroney labelDecode a VINWhat each character meansAbout this car2016–2020

Frequently asked questions

How much cargo space does the Cadillac CT6 have?

15 cu ft in the trunk in the 2020 model, with 110 cu ft of passenger space. The average for 118 sedans and coupes with a similar cabin is 15.6 cu ft.

Does the CT6 have more cargo space than the Jaguar XJ?

No: 15 cu ft against 18 cu ft for the 2019 Jaguar XJ, about 3 cu ft less.

Has the CT6's trunk got bigger over the years?

Not much overall: 15 cu ft in 2016 and 15 cu ft in 2020, within 2 cu ft in every year we hold.

Which cars have the same cargo room as the CT6?

The closest by volume in the same body family are the Nissan Altima (15 cu ft), Toyota Camry (15 cu ft) and Hyundai Genesis (15 cu ft), against 15 cu ft for the CT6.

Cargo and passenger volumes from EPA interior-volume records, measured 2020 for the Cadillac CT6, seats up. Luggage capacity computed by ForCar at 80% usable volume against airline-standard case sizes (how we count). Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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