DIAMANTE

Mitsubishi Diamante Trunk Space

The Mitsubishi Diamante holds 14 cu ft — that is 2 checked suitcases or 7 carry-ons, with the boot loaded properly rather than to the brim.

EPA interior volume · 14 cu ft boot · 102 cu ft cabin · measured 2005 · Updated Sep 20, 2026
Quick answer

The Mitsubishi Diamante has 14 cu ft of cargo space. In practice that is 2 checked suitcases, or 7 carry-ons, or about 11 supermarket bags. A folded pushchair fits. Against 263 cars with a similar-sized cabin it sits below the average of 17.7 cu ft.

What actually fits in a Diamante

Cubic feet are an abstraction — 14 cu ft means nothing until you load it. Here is the same number in things people actually load, 2 checked cases or 7 carry-ons for the Mitsubishi Diamante, with a packing allowance — a boot is not a cube, and corners go to waste.

FIG.01·Mitsubishi Diamante — what fits in the boot
What you are loadingHow many fitEach item
Checked suitcases227 × 21 × 14″ — 4.6 cu ft
Carry-on cases722 × 14 × 9″ — 1.6 cu ft
Supermarket bags11about 1 cu ft each
Golf bags2full set, about 5 cu ft
Folded pushchairFitsabout 6 cu ft
ROWS 5·SOURCE ForCar, computed from EPA cargo volume

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 Mitsubishi Diamante gives 12.1% of its 116 cu ft to luggage. The share below is the honest way to compare an estate with a coupé of the same footprint, and among 263 cars with a cabin within eight cubic feet of the Mitsubishi Diamante the boot averages 17.7 cu ft.

FIG.02·Mitsubishi Diamante — cabin versus cargo
SpaceVolumeShare of total
Passenger cabin102 cu ft87.9%
Cargo area14 cu ft12.1%
Total interior116 cu ft100%
ROWS 3·SOURCE EPA interior volume

Under 15% to luggage — the space went to passengers, not their bags.

Against cars with a similar cabin

Compared with 263 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.

FIG.03·Mitsubishi Diamante against similar cars
MeasureThis carSimilar carsDifference
Cargo volume14 cu ft17.7 cu ft-3.7 cu ft
In checked suitcases23-1
ROWS 2·SOURCE ForCar, computed across cars of similar cabin size

Cars with the same room

Closest matches by trunk volume — useful when the boot is the deciding factor and the badge is not. The Mitsubishi Diamante sits at 14 cu ft, so these are the cars that carry the same load.

FIG.04·Mitsubishi Diamante — cars with the same cargo room
CarTrunk volumevs Mitsubishi DiamanteChecked suitcasesMeasured
BMW 525i14 cu ft0 cu ft22007
BMW 525xi14 cu ft0 cu ft22007
BMW 528xi14 cu ft0 cu ft22008
BMW 530xi14 cu ft0 cu ft22007
BMW 535xi14 cu ft0 cu ft22008
BMW 545i14 cu ft0 cu ft22005
ROWS 6·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 — 2 checked cases for the Mitsubishi Diamante come out of its 14 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 Mitsubishi Diamante counts as 11.2 cu ft of usable space rather than 14. Suitcase sizes are the airline standards — 22 × 14 × 9″ for carry-on, 27 × 21 × 14″ for checked, so the Mitsubishi Diamante takes 7 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 Mitsubishi Diamante have?

14 cu ft behind the rear seats, plus 102 cu ft of passenger cabin.

How many suitcases fit in a Diamante?

About 2 checked cases (27 × 21 × 14″) or 7 carry-ons, allowing for the fact that a boot is not a perfect cube.

Will a pushchair fit in a Diamante?

Yes — a folded pushchair takes roughly 6 cu ft and this car has 14, so it fits with room for shopping.

Is that a lot for this size of car?

Compared with 263 cars of a similar cabin size, it is below the average of 17.7 cu ft.

Cargo and passenger volumes from EPA interior-volume records, measured 2005 for the Mitsubishi Diamante, seats up. Luggage capacity computed by ForCar at 80% usable volume against airline-standard case sizes. Last updated Sep 2026. — ForCar Reviewed by , founder of ForCar.
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