$9,685 lower median
2018 Cadillac ATS
$11,900Median asking price · 5 qualifying listings
Middle 50%$10,788–$11,999
Find listings on VehiSales ↗Actual Luxury listing photo; individual equipment may differ.
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2018 BMW 640xi prices in California
$20,787
Median asking price
8 active listings · Updated September 21, 2026
Price your exact car
California price overview
Typical asking price range
$19,380 – $22,430 All 8 listings · Middle 50% of asking pricesMedian asking price
$20,787Trim, mileage and condition change what a comparable vehicle costs.
As of September 21, 2026, the median asking price for a 2018 BMW 640xi in California is $20,787, based on 8 active dealer listings tracked by VinAssessment.
Behind the price
Price range & market sample
The median asking price for a 2018 BMW 640xi in California is $20,787 based on 8 active listings.
8 active dealer listings
Snapshot September 21, 2026 · refreshed daily
30-day asking price change: −$2,612.
Typical: $19,380–$22,430 — the middle half of 8 asking prices
Median $20,787
$18K low
$27K high
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded.
$20,787
Pre-owned median (8)
76,965
Average mileage
−$209
vs national average
What moves the price
Mileage
Asking prices run about $27,744 at 30K–45K miles and fall to $16,321 over 105K miles — roughly $1,500 for every 10,000 miles. These are different vehicles; trim, condition and equipment also vary.
Observed spread: up to $11,423About these price differences
The $19,380–$22,430 typical range isn't randomness — one factor explains most of it:
Biggest factor in these observed spreads: Mileage. These groups contain different vehicles.
Find your mileage and trim in the configurator below.
Configure the exact car
Choose a state and trim once to update the connected price tables and charts for a 2018 BMW 640xi. Mileage adjusts the estimate only.
The configurator starts with United States prices for all trims. Select a state to explore its estimates; the report heading and overview above describe the page's state.
Total miles the car has already driven, as shown on its odometer.
mi
Estimated asking price · All trims
$20,988
$17,595
–
$22,800
49 listings · Nationwide
ⓘ This is a modelled estimate based on current listings and market data. Actual prices may vary.
Estimate assumptions
at typical mileage, nationwide
Modelled from 49 real asking prices, adjusted for mileage and location. An illustrative estimate from mixed listing groups, not matched vehicles. Not a formal appraisal.
Live 2018 BMW 640xi listings, priced by VIN
Compared with all listings
All-listings median $20,787
2018 BMW 640xi
Xdrive GT
$19,294
VIN WBAJV6C52JBK07377
−$1,493 · vs all-listings median
2018 BMW 640xi
Xdrive GT
$22,800
VIN WBAJV6C5XJBJ99318
+$2,013 · vs all-listings median
2018 BMW 640xi
Xdrive GT
$22,102
VIN WBAJV6C50JBK07281
+$1,315 · vs all-listings median
View 1 more priced VINs
Price differences are not deal ratings. Compare equipment, mileage and vehicle history before judging a price.
Every VIN links to a full market report: decode, active listings and the local price band.
A little comparison goes a long way
About this comparison ↓What else could you drive?
Compare 2018 BMW 640xi with other models from the same year. Choose the trims that matter to you.
As of September 21, 2026, among same-year alternatives to the 2018 BMW 640xi in this catalog, the 2018 Cadillac ATS has the lowest median asking price ($11,900, 5 listings with photos) and the 2018 Alfa Romeo Giulia (952) the highest ($17,950, 11 listings).
Comparison catalog · Snapshot September 21, 2026, 05:00 UTC · Only listings with photos. This sample is separate from the price overview above and its figures differ.
Your comparison starting point
2018 BMW 640xi
All trims · California
The price overview above is this page’s reference figure. The comparison below uses its own catalog sample: 8 listings with photos, catalog median $21,585 (the baseline for the “lower/higher” badges).
Middle 50%: $19,750–$22,800
Explore the alternatives
$5,086 lower median
2018 Lincoln MKZ
$16,499Median asking price · 8 qualifying listings
Middle 50%$14,995–$19,000
Find listings on VehiSales ↗Actual HEV listing photo; individual equipment may differ.
$3,635 lower median
2018 Alfa Romeo Giulia (952)
$17,950Median asking price · 11 qualifying listings
Middle 50%$12,995–$19,800
Find listings on VehiSales ↗Actual TI listing photo; individual equipment may differ.
No photo for this selection
2018 Lincoln Continental
Not enough dataMedian asking price · 0 qualifying listings
No listings match the current filters for this model.
Find listings on VehiSales ↗
2018 Cadillac CTS
Not enough dataMedian asking price · 4 qualifying listings
Fewer than 5 qualifying listings. Try a broader selection.
Find listings on VehiSales ↗Actual V-Series listing photo; individual equipment may differ.
No alternatives have a lower median in this selection. Broaden your filters or turn off “Lower median price only”.
Compare prices side by side
| Model / trim | Median | Middle 50% | Listings |
|---|---|---|---|
| 2018 BMW 640xi All trims | see price overview above | $19,750–$22,800 | 8 |
| 2018 Cadillac ATS All trims | $11,900 | $10,788–$11,999 | 5 |
| 2018 Lincoln MKZ All trims | $16,499 | $14,995–$19,000 | 8 |
| 2018 Alfa Romeo Giulia (952) All trims | $17,950 | $12,995–$19,800 | 11 |
| 2018 Lincoln Continental All trims | Not enough data | — | 0 |
| 2018 Cadillac CTS All trims | Not enough data | — | 4 |
What these prices mean
Only catalog listings with photos are included. Trim names do not verify equivalent equipment. Prices are asking prices, not completed sales. Alternatives share the body style and class of the source model; the nearest model years are used when the same year has too few listings. Price differences are not a valuation adjustment or guaranteed savings.
Snapshot: September 21, 2026, 05:00 UTC. 0 source listings excluded by statistical price screening; this does not verify that every deposit or payment ad has been removed.
VehiSales opens in a new tab with the model, year and known mileage range. Confirm trim, fuel, drivetrain, condition and location on VehiSales; its live inventory may differ.
2018 BMW 640xi: a fair price for your mileage
Mileage means the miles recorded on the odometer. Compare asking prices in your mileage band, then select a trim — the equipment version — to narrow the comparison where data is available.
Across the national mileage bands, the overall difference is roughly $1,500 per 10,000 miles. These are different vehicles, not depreciation of the same car.
Region · trim United States · All trims
Active listings 49
Median asking price $20,988
Mileage means the total miles on the odometer. Each point shows the median asking price for a mileage band; shaded areas show the middle 50% of prices.
Swipe the chart horizontally to see every mileage band.
Counts cover the selected region and trim, including listings without usable mileage. Thin mileage bands and rare or unknown trims may be omitted from the chart.
View the full national mileage price table
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 30K–45K miles | 6 listings | $27,744 | $26K–$30K |
| 45K–60K miles | 9 listings | $26,998 | $22K–$28K |
| 60K–75K miles | 5 listings | $21,950 | $22K–$22K |
| 75K–90K miles | 13 listings | $19,750 | $18K–$22K |
| 90K–105K miles | 11 listings | $16,994 | $17K–$18K |
| Over 105K miles | 5 listings | $16,321 | $15K–$17K |
United States — all states. These bands combine different trims, conditions and listing histories. They do not hold trim or condition constant. National data; the mix of vehicles in California may differ.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Understand the differences
2018 BMW 640xi: VIN configurations and specifications
Multiple VIN patterns can share the same trim. Compare their recorded equipment, then open a specification page for the full details.
Where these specifications come from
Specifications combine decoded VIN data, including NHTSA vPIC , with inventory records. If decoding does not identify a trim, a recorded inventory trim may be shown. VIN patterns do not confirm every installed option.
Counts describe observed VINs in our database, not factory production totals. Prices are median asking prices from qualifying U.S. listings, not original MSRP. Check the vehicle’s build sheet for exact equipment.
FACTORY REFERENCE
2018 BMW 640xi factory brochure
Model-year reference for features and equipment. Actual VIN equipment may differ.
No verified factory brochure is currently listed for this exact model year.
Need equipment for a specific vehicle? Look up its factory window sticker →
Price trend
View California price trend · all trims
Average price is down $208 since June 23.
Average asking price (USD) · California · all trims. Hover, tap or focus a point for its date and price.
Chart scale: $19,347–$25,482. On narrow screens, scroll the chart sideways to see the full period.
Daily average price table
| Date | Average asking price (USD) |
|---|---|
| September 21, 2026 | $21,287 |
| September 20, 2026 | $21,287 |
| September 19, 2026 | $21,244 |
| September 18, 2026 | $21,244 |
| September 17, 2026 | $21,244 |
| September 16, 2026 | $21,581 |
| September 15, 2026 | $20,664 |
| September 14, 2026 | $19,941 |
| September 13, 2026 | $20,075 |
| September 12, 2026 | $19,950 |
| September 11, 2026 | $20,242 |
| September 10, 2026 | $20,242 |
| September 9, 2026 | $20,233 |
| September 8, 2026 | $20,242 |
| September 7, 2026 | $21,612 |
| September 6, 2026 | $21,786 |
| September 5, 2026 | $22,259 |
| September 4, 2026 | $22,477 |
| September 3, 2026 | $23,145 |
| September 2, 2026 | $23,153 |
| September 1, 2026 | $22,798 |
| August 31, 2026 | $22,798 |
| August 30, 2026 | $22,798 |
| August 29, 2026 | $22,376 |
| August 28, 2026 | $23,710 |
| August 27, 2026 | $23,696 |
| August 26, 2026 | $23,710 |
| August 25, 2026 | $24,871 |
| August 24, 2026 | $24,888 |
| August 23, 2026 | $24,871 |
| August 22, 2026 | $23,899 |
| August 21, 2026 | $24,305 |
| August 20, 2026 | $23,690 |
| August 19, 2026 | $23,549 |
| August 18, 2026 | $23,549 |
| August 17, 2026 | $22,270 |
| August 16, 2026 | $22,216 |
| August 15, 2026 | $21,875 |
| August 14, 2026 | $20,651 |
| August 13, 2026 | $20,555 |
| August 12, 2026 | $20,955 |
| August 11, 2026 | $21,237 |
| August 10, 2026 | $20,917 |
| August 9, 2026 | $20,917 |
| August 8, 2026 | $20,917 |
| August 7, 2026 | $21,006 |
| August 6, 2026 | $21,006 |
| August 5, 2026 | $21,436 |
| August 4, 2026 | $21,446 |
| August 3, 2026 | $21,194 |
| August 2, 2026 | $21,194 |
| August 1, 2026 | $21,246 |
| July 31, 2026 | $21,021 |
| July 30, 2026 | $20,983 |
| July 29, 2026 | $21,021 |
| July 28, 2026 | $20,635 |
| July 27, 2026 | $20,551 |
| July 26, 2026 | $20,491 |
| July 25, 2026 | $20,339 |
| July 24, 2026 | $20,346 |
| July 23, 2026 | $20,389 |
| July 22, 2026 | $20,389 |
| July 21, 2026 | $20,389 |
| July 20, 2026 | $20,389 |
| July 19, 2026 | $20,389 |
| July 18, 2026 | $20,389 |
| July 17, 2026 | $20,609 |
| July 16, 2026 | $20,609 |
| July 15, 2026 | $20,563 |
| July 14, 2026 | $20,563 |
| July 13, 2026 | $20,623 |
| July 12, 2026 | $21,378 |
| July 11, 2026 | $20,807 |
| July 10, 2026 | $20,623 |
| July 9, 2026 | $20,698 |
| July 8, 2026 | $20,698 |
| July 7, 2026 | $20,706 |
| July 6, 2026 | $21,364 |
| July 5, 2026 | $21,364 |
| July 4, 2026 | $21,347 |
| July 3, 2026 | $21,347 |
| July 2, 2026 | $21,347 |
| July 1, 2026 | $21,052 |
| June 30, 2026 | $21,052 |
| June 29, 2026 | $21,282 |
| June 28, 2026 | $21,998 |
| June 27, 2026 | $21,601 |
| June 26, 2026 | $21,601 |
| June 25, 2026 | $21,601 |
| June 24, 2026 | $21,601 |
| June 23, 2026 | $21,495 |
2018 BMW 640xi inventory across the U.S.
See how asking prices vary across states. Looking for a 2018 BMW 640xi for sale near you? Open your state's price guide to compare its market, then follow the local listings link to browse available vehicles.
United States · all trims · snapshot September 21, 2026. Explore state markets below. Prices and counts cover all trims in each state; the full comparison table remains available below the map.
View the U.S. inventory map
What does this map show?
The numbers are active listings, not prices. Badges mark the 3 busiest mapped states to keep the map readable; other states can also have listings.
Hover over a state or focus it with your keyboard for details. Click a linked state or its number to open that state's price page.
State details will appear here. On a phone, tap a linked state to open its prices; use the full table for easier browsing.
Scroll the map sideways on smaller screens. Numbers stay large enough to read.
Most active listings
Other states with active listings
No active listings or insufficient data
Alaska and Hawaii are not drawn on this map. Where qualifying data is available, they appear in the full state table. Grey does not necessarily mean no cars are for sale.
EXPLORE THE YEARS
Other BMW 640xi years
Same model, a different chapter. Start with a nearby year, or open the complete timeline.
Other years show national prices; 2018 shows California prices.
You are here
2018
BMW 640xi
California
Typical asking price
$20,787
Your current report
A newer model year
2019
BMW 640xi
Typical asking price
$22,499
Explore this year →
Explore all 1 other model years
Pick a year to open its price report. Prices compare different vehicles and equipment, not the changing value of one car.
Nearby model years
MEET THE REST OF THE LINEUP
More 2018 BMW prices
Something else catch your eye? Explore other 2018 BMW models before you decide.
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BMW 430i
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BMW X1
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BMW 330i
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BMW 530i
Explore this model →Prices shown for other models are average asking prices in the national snapshot. Photos are representative; trim and equipment vary.
What would a 2018 BMW 640xi cost per month?
Estimate the monthly payment on a $20,988 vehicle. Move the numbers to match your own loan.
10% down
7.0% is an illustrative starting rate — use your own lender quote.
Loan term
Estimated monthly payment
$374
per month
60 months · 7.0% APR · $2,099 down
Amount financed
$18,889
Total interest
$3,551
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Before you buy
A few important steps can help you buy with confidence.
- Check title and accident history
- Arrange an independent inspection
- Review factory equipment
- Check recalls by VIN
Frequently asked questions
Why do 2018 BMW 640xi prices range from $17,690 to $27,270 in California?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $19,380 and $22,430 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 BMW 640xi?
Across the lowest- and highest-mileage groups, asking prices differ by roughly $1,500 per 10,000 miles. These groups contain different vehicles: this is not a same-trim adjustment or a forecast for one car. Compare the mileage and trim tables, then check condition, equipment and vehicle history.
Do BMW 640xi prices in California differ from the rest of the country?
Yes. The average in California is $21,287, which is $209 below the national average of $21,496. Local supply, demand and transport costs all play a part.
How many 2018 BMW 640xi are for sale in California right now?
8 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
Is this the trade-in value or private-party value of my 2018 BMW 640xi?
These figures describe dealer asking prices, not trade-in offers, private-party sale values or completed sale prices. Use them to compare advertised vehicles. To find out what a buyer or dealer would pay for your car, request an offer that takes its mileage, condition, equipment and history into account.
How we calculate these prices
We track 8 active listings for this vehicle across dealer sites in California, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Look up the original Monroney sticker for a 2018 BMW →
Own a 2018 BMW 640xi? See what it's worth →
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