2018 BMW 640i

$28,973

from

listings

$29K–$29K

price range

Download Infographic

Low$28,973

High$28,973

From$28,973

Avg Mileage75,000 mi

Fresh

Sourced from 1 dealer listings in the latest market snapshot as of Aug 2026

2018 BMW 640i Pricing

Price Trend

Building price history...

Only 1 available nationwide.

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BMW 640i Fuel Economy

22–23mpg combined

19-20city

28-29hwy

$3,550-$3,700/yr

Across 5 configurations, the 2018 BMW 640i returns 22–23 MPG combined. Choose the thriftier option if you're commuting; the sportier setup if you're not counting gallons.

By Trim

640i Convertible - Automatic (S8)

23mpg

3.0L 6-cyl Turbo · Rear-Wheel Drive

20 city29 hwy~$3,550/yr5/10 Average

640i Gran Coupe - Automatic (S8)

23mpg

3.0L 6-cyl Turbo · Rear-Wheel Drive

20 city29 hwy~$3,550/yr5/10 Average

640i xDrive Gran Turismo - Automatic (S8)

23mpg

3.0L 6-cyl Turbo · All-Wheel Drive

20 city28 hwy~$3,550/yr5/10 Average

640i xDrive Convertible - Automatic (S8)

22mpg

3.0L 6-cyl Turbo · All-Wheel Drive

19 city28 hwy~$3,700/yr4/10 Average

640i xDrive Gran Coupe - Automatic (S8)

22mpg

3.0L 6-cyl Turbo · All-Wheel Drive

19 city28 hwy~$3,700/yr4/10 Average

Source: U.S. Environmental Protection Agency (EPA)

Where to Find 2018 BMW 640i

11States

43%in top 3

21% of the market sits in California, though listings span 11 states. Expand your search and you'll find more options at better prices.

CACalifornia

321%

NCNorth Carolina

214%

DEDelaware

17%

MDMaryland

17%

ILIllinois

17%

WAWashington

17%

OROregon

17%

COColorado

17%

PAPennsylvania

17%

TNTennessee

17%

DCWashington DC

17%

Geographic distribution reflects all active listings for this model, not just 2018.

2018 BMW 640i Buyer FAQ

What to know before you buy

Is the 2018 BMW 640i a good car to buy?

Here's the short version on the 2018 BMW 640i. On the safety front, there are no open recalls on record, which is a positive sign. Dig into the safety overview and pricing trends for recall-by-recall detail.

What's the gas mileage of the 2018 BMW 640i?

You'll get between 22 and 23 MPG combined from the 2018 BMW 640i, depending on engine and drivetrain. That's a meaningful difference over time. The fuel economy table shows exactly which configs get what.