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Cadillac Cargo Space by Model

Measured cargo space across 21 Cadillac models — 16.9 cu ft of trunk space on average, up to 30 cu ft in the roomiest. Below, every model from the roomiest down, with what genuinely fits inside each.

EPA interior volume · 21 models · 21 trunk measurements · Updated Nov 3, 2026
Quick answer

Cadillac models average 16.9 cu ft of trunk space — roughly 2 checked suitcases. The roomiest holds 30 cu ft, the tightest 10, across 21 measurements.

What actually fits

A translation from cubic feet into luggage, on Cadillac's own models, so the numbers below mean something.

FIG.01·Cadillac — what fits in each trunk
ModelTrunk volumeChecked casesCarry-onsStrollerMeasured
Cadillac SRX30 cu ft515yes2016
Cadillac Optiq26 cu ft413yes2026
Cadillac Lyriq24 cu ft412yes2026
Cadillac XT423 cu ft411yes2025
Cadillac Fleetwood21 cu ft310yes1996
Cadillac Brougham19 cu ft39yes1992
Cadillac Deville19 cu ft39yes2005
Cadillac DTS19 cu ft39yes2011
ROWS 8·SOURCE EPA interior volume + ForCar

Across Cadillac the trunk averages 16.9 cu ft, against 15.4 cu ft for every car we measure.

Cadillac models by cargo space

From the roomiest down — 21 models with a measured trunk.

FIG.01·Cadillac models by cargo space
ModelCargoChecked suitcasesCabin
Cadillac SRX30 cu ft5101 cu ft
Cadillac Optiq26 cu ft4102 cu ft
Cadillac Lyriq24 cu ft4105 cu ft
Cadillac XT423 cu ft4101 cu ft
Cadillac Fleetwood21 cu ft3125 cu ft
Cadillac Brougham19 cu ft3111 cu ft
Cadillac Deville19 cu ft3117 cu ft
Cadillac DTS19 cu ft3113 cu ft
Cadillac XTS18 cu ft3104 cu ft
Cadillac CT615 cu ft2110 cu ft
Cadillac Eldorado15 cu ft2100 cu ft
Cadillac Seville15 cu ft2106 cu ft
Cadillac Catera14 cu ft299 cu ft
Cadillac Celestiq14 cu ft2107 cu ft
Cadillac STS14 cu ft2104 cu ft
Cadillac Cimarron13 cu ft289 cu ft
Cadillac CTS13 cu ft2100 cu ft
Cadillac CT411 cu ft190 cu ft
Cadillac CT511 cu ft199 cu ft
Cadillac ELR11 cu ft183 cu ft
Cadillac ATS10 cu ft196 cu ft
ROWS 21·SOURCE EPA interior volume + ForCar
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How we count

Cargo and passenger volumes come from EPA interior-volume records — the same figures manufacturers file for the window sticker, measured to a standard method rather than claimed in a brochure.

The luggage counts are ours — computed for all 21 Cadillac models below. We assume 80% usable volume, because a trunk is not a cube: wheel arches, a sloping tailgate and the shape of the cases themselves waste the rest, so the 16.9 cu ft Cadillac averages becomes 13.5 cu ft you can actually pack. Suitcase sizes are the airline standards — 22 × 14 × 9″ for carry-on, 27 × 21 × 14″ for checked, and the roomiest Cadillac here swallows 5 checked cases. Numbers are deliberately conservative; if we say four cases fit, four cases fit.

Everything on Cadillac
Recalls775 campaignsFuel economy105 mpg bestReliabilityEvery model rankedCommon problems16,148 complaintsCheck a VINBy production runDimensionsSize and weightWhat yours is worthValuation by modelInsurance costPer model, per stateWindow stickersOriginal Monroney labelsDecode a VINWhat each character meansAbout the brand32 models tracked

Frequently asked questions

Which Cadillac has the most cargo space?

The roomiest holds 30 cu ft. The table above sorts every Cadillac model from the largest trunk down.

What is the average Cadillac cargo space?

16.9 cu ft across 21 models — about 2 checked suitcases.

Where do these figures come from?

EPA interior-volume records — standardised measurements filed by manufacturers, not marketing claims.

Cargo and passenger volumes from EPA interior-volume records, 21 measurements across 21 Cadillac models, seats up. Luggage capacity computed by ForCar at 80% usable volume against airline-standard case sizes. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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