The Lexus GS has 15 cu ft of cargo space. In practice that is 2 checked suitcases, or 7 carry-ons, or about 12 supermarket bags. A folded pushchair fits. Against 507 cars with a similar-sized cabin it sits below the average of 20.2 cu ft.
What actually fits in a GS
Cubic feet are an abstraction. Here is the same number in things people actually load, 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 | 7 | 22 × 14 × 9″ — 1.6 cu ft |
| Supermarket bags | 12 | 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 share below is the honest way to compare an estate with a coupé of the same footprint.
| Space | Volume | Share of total |
|---|---|---|
| Passenger cabin | 101 cu ft | |
| Cargo area | 15 cu ft | |
| Total interior | 116 cu ft |
Under 15% to luggage — the space went to passengers, not their bags.
Against cars with a similar cabin
Compared with 507 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 | 15 cu ft | 20.2 cu ft | -5.2 cu ft |
| In checked suitcases | 2 | 3 | -1 |
Cars with the same room
Closest matches by cargo volume — useful when the boot is the deciding factor and the badge is not.
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. 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. Suitcase sizes are the airline standards — 22 × 14 × 9″ for carry-on, 27 × 21 × 14″ for checked. Numbers are deliberately conservative; if we say four cases fit, four cases fit.
Related tools
Frequently asked questions
How much cargo space does the Lexus GS have?
15 cu ft behind the rear seats, plus 101 cu ft of passenger cabin.
How many suitcases fit in a GS?
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 GS?
Yes — a folded pushchair takes roughly 6 cu ft and this car has 15, so it fits with room for shopping.
Is that a lot for this size of car?
Compared with 507 cars of a similar cabin size, it is below the average of 20.2 cu ft.