The Cadillac CTS has 13 cu ft of cargo space. In practice that is 2 checked suitcases, or 6 carry-ons, or about 10 supermarket bags. A folded pushchair fits. Against 286 cars with a similar-sized cabin it sits below the average of 17.4 cu ft.
What actually fits in a CTS
Cubic feet are an abstraction — 13 cu ft means nothing until you load it. Here is the same number in things people actually load, 2 checked cases or 6 carry-ons for the Cadillac CTS, with a packing allowance — a boot is not a cube, and corners go to waste.
| What you are loading | How many fit | Each item |
|---|---|---|
| Checked suitcases | 2 | 27 × 21 × 14″ — 4.6 cu ft |
| Carry-on cases | 6 | 22 × 14 × 9″ — 1.6 cu ft |
| Supermarket bags | 10 | about 1 cu ft each |
| Golf bags | 2 | full set, about 5 cu ft |
| Folded pushchair | Fits | about 6 cu ft |
Counts assume 80% usable volume: luggage does not tessellate, and a wheel arch eats the rest.
Cabin or boot — where the space went
Every car is a fixed envelope, and designers decide how to split it between people and things — the Cadillac CTS gives 11.5% of its 113 cu ft to luggage. The share below is the honest way to compare an estate with a coupé of the same footprint, and among 286 cars with a cabin within eight cubic feet of the Cadillac CTS the boot averages 17.4 cu ft.
| Space | Volume | Share of total |
|---|---|---|
| Passenger cabin | 100 cu ft | |
| Cargo area | 13 cu ft | |
| Total interior | 113 cu ft |
Under 15% to luggage — the space went to passengers, not their bags.
Against cars with a similar cabin
Compared with 286 models whose passenger space is within eight cubic feet — a fairer group than marketing classes, which put an estate and a coupé in the same bracket.
| Measure | This car | Similar cars | Difference |
|---|---|---|---|
| Cargo volume | 13 cu ft | 17.4 cu ft | -4.4 cu ft |
| In checked suitcases | 2 | 3 | -1 |
Cars with the same room
Closest matches by trunk volume — useful when the boot is the deciding factor and the badge is not. The Cadillac CTS sits at 13 cu ft, so these are the cars that carry the same load.
| Car | Trunk volume | vs Cadillac CTS | Checked suitcases | Measured |
|---|---|---|---|---|
| BMW 320i | 0 cu ft | 2 | 2018 | |
| BMW 328d | 0 cu ft | 2 | 2018 | |
| BMW 328i | 0 cu ft | 2 | 2016 | |
| Dodge Avenger | 0 cu ft | 2 | 2014 | |
| Volvo C70 | 0 cu ft | 2 | 2013 | |
| Volkswagen CC | 0 cu ft | 2 | 2017 |
Boot space is one number. Buying is a longer list.
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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 — 2 checked cases for the Cadillac CTS come out of its 13 cu ft. We assume 80% usable volume, because a boot is not a cube: wheel arches, a sloping tailgate and the shape of the cases themselves waste the rest, which is why the Cadillac CTS counts as 10.4 cu ft of usable space rather than 13. Suitcase sizes are the airline standards — 22 × 14 × 9″ for carry-on, 27 × 21 × 14″ for checked, so the Cadillac CTS takes 6 of the small ones. Numbers are deliberately conservative; if we say four cases fit, four cases fit.
Frequently asked questions
How much cargo space does the Cadillac CTS have?
13 cu ft behind the rear seats, plus 100 cu ft of passenger cabin.
How many suitcases fit in a CTS?
About 2 checked cases (27 × 21 × 14″) or 6 carry-ons, allowing for the fact that a boot is not a perfect cube.
Will a pushchair fit in a CTS?
Yes — a folded pushchair takes roughly 6 cu ft and this car has 13, so it fits with room for shopping.
Is that a lot for this size of car?
Compared with 286 cars of a similar cabin size, it is below the average of 17.4 cu ft.
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