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What's a BMW 645Ci Worth?

A 2004 BMW 645Ci is worth about $7,500: that is the median asking price across 5 listings, most of them between $5,800 and $17,995. With so few cars for sale, treat it as a rough figure.

2004 BMW 645Ci · estimated market value
$7,500
$5,800Trade-in / low $17,995Dealer / high
Based on 5 real listings. Pick a year or add mileage below.
Check your VIN before you sell →
Free · 9 real BMW 645Ci listings · 2004–2005 · no signup
What the numbers say

We price the BMW 645Ci across 2 model years (2004–2005), from $6,900–$7,500, using 9 listings.

Everything on the BMW 645Ci
Fuel economy19 mpg bestDimensionsSize, weight, generationsCargo space13 cu ftUsed prices84 listingsWindow stickerOriginal Monroney labelDecode a VINWhat each character meansAbout this car2004–2005
2
Years priced
$7,500
2004 median
9
Listings

BMW 645Ci value by year

FIG.01·BMW 645Ci Value by Year
YearTrade-inMedianDealerListings
2005$4,200$6,900$12,9994
2004$5,800$7,500$17,9955
ROWS 2·SOURCE ForCar · BMW 645Ci

How the BMW 645Ci depreciates

FIG.02·BMW 645Ci Depreciation Curve — Median Value by Year
20052004$6,900$7,500
RANGE $6,900 → $7,500·SOURCE ForCar · BMW 645Ci

The newest BMW 645Ci has a median asking price of $6,900; a 1-year-older one runs about $7,500 — roughly -9% lost over 1 years (compare the typical depreciation curve by age).

The BMW 645Ci market right now

FIG.04·BMW 645Ci Market — Asking Price Range by Year
20042005$7,500$6,900
RANGE $7,500 → $6,900·SOURCE ForCar · 39 listings
This is the median line. Pro plots all 39 BMW 645Ci listings on this chart and flags every under-market deal.Upgrade to Pro →

Adjust your BMW 645Ci value for mileage

Trade-in, private-party & dealer price

Trade-in / low
$6k
Private-party
$8k
Dealer / high
$18k
FIG.06·BMW 645Ci — Trade-in vs Private-Party vs Dealer
01
Trade-in — a dealer pays you10th percentile$5,800
02
Private-party — you sell itmedian · typical price$7,500
03
Dealer retail — a lot charges90th percentile$17,995
TOP 3·UNIT $ · 2004 BMW 645Ci·SOURCE ForCar · 5 listings

For a 2004 BMW 645Ci: a dealer trade-in offer is around $5,800, selling private-party nets about $7,500, and a lot asks near $17,995 — a $12,195 spread on the same car.

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More on the BMW 645Ci

BMW 645Ci Reliability
Recalls, common problems, best & worst years and specs.
BMW 645Ci Window Sticker
Original build sheet & MSRP by year.
VIN Check
Theft, title brands & total-loss before you buy or sell.

BMW 645Ci value FAQ

How much is a BMW 645Ci worth?

It depends mostly on the model year: in our listings the median asking price runs from $6,900 to $7,500 across 2 model years. A 2004 is worth about $7,500, the median of 5 listings.

BMW 645Ci values from 9 US listings, model years 2004–2005, rebuilt every 6 hours. These are asking prices, not sale prices. Last updated Nov 2026. — ForCar Reviewed by , founder of ForCar.
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