BMW 645Ci Trunk Space — 13 cu ft and What Fits

Quick answer

Among 110 sedans and coupes with a similar-sized cabin, the average is 10.8 cu ft, so the 645Ci sits above it.

What actually fits in a 645Ci

FIG.01·BMW 645Ci — what fits in the trunk
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
Grocery bags	10	about 1 cu ft each
Golf bags	2	full set, about 5 cu ft
Folded stroller	Fits	about 6 cu ft

ROWS 5·SOURCE ForCar, computed from EPA cargo volume

Cabin or cargo — where the space went

FIG.02·BMW 645Ci — cabin versus cargo
Space	Volume	Share of total
Passenger cabin	82 cu ft	86.3%
Cargo area	13 cu ft	13.7%
Total interior	95 cu ft	100%

ROWS 3·SOURCE EPA interior volume

Against cars with a similar cabin

FIG.03·BMW 645Ci against similar cars
Measure	This car	110 sedans and coupes with a similar cabin	Difference
Cargo volume	13 cu ft	10.8 cu ft	+2.2 cu ft
In checked suitcases	2	1	+1

ROWS 2·SOURCE ForCar, computed across cars of similar cabin size

Cars with the same room

Against its closest rivals: the Jaguar XK8 has 11 cu ft, next to 13 cu ft for the 645Ci. That makes the 645Ci the roomiest of the two.

FIG.04·BMW 645Ci — cars with the same cargo room
Car	Trunk volume	vs BMW 645Ci	Checked suitcases	Measured
Ford Contour	13 cu ft	0 cu ft	2	2000
Pontiac GTO	13 cu ft	0 cu ft	2	2006
Dodge Neon	13 cu ft	0 cu ft	2	2005
Volvo S40	13 cu ft	0 cu ft	2	2011
Pontiac Sunfire	13 cu ft	0 cu ft	2	2005
Chevrolet Aveo	12 cu ft	-1 cu ft	2	2011

ROWS 6·SOURCE EPA interior volume + ForCar

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Everything on the BMW 645Ci

Fuel economy19 mpg best DimensionsSize, weight, generations Used prices80 listings Window stickerOriginal Monroney label Decode a VINWhat each character means About this car2004–2005

Frequently asked questions

How much cargo space does the BMW 645Ci have?

13 cu ft in the trunk in the 2005 model, with 82 cu ft of passenger space. The average for 110 sedans and coupes with a similar cabin is 10.8 cu ft.

Does the 645Ci have more cargo space than the Jaguar XK8?

Yes: 13 cu ft against 11 cu ft for the 2006 Jaguar XK8, about 2 cu ft more.

Which cars have the same cargo room as the 645Ci?

The closest by volume in the same body family are the Ford Contour (13 cu ft), Pontiac GTO (13 cu ft) and Dodge Neon (13 cu ft), against 13 cu ft for the 645Ci.

Cargo and passenger volumes from EPA interior-volume records, measured 2005 for the BMW 645Ci, 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 Denis Kataev, founder of ForCar.

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