Used 2018 BMW 6 Series

2018 BMW 6 Series
List Price

Pros & Cons

  • Both engines provide strong acceleration
  • Attractive interior design and customization options
  • Convertible doesn't excessively compromise trunk space
  • Compact rear seats and tight rear-seating area
  • Some competitors are a bit more exciting to drive
  • Android Auto is not available, and Apple CarPlay not standard

Which 6 Series does Edmunds recommend?

The 650i sDrive is an easy choice. On top of a bigger and more powerful engine, this trim comes standard with some options you'd want from a luxury grand tourer, such as extra seat adjustability and a higher-quality sound system. All-wheel drive adds little benefit and extra weight that makes the car less fun to drive, so unless you plan for snow we recommend the rear-wheel-drive sDrive. If the V8 seems like overkill, the 640i's six-cylinder engine remains a potent, less expensive and more fuel-efficient option. Plus, you can still option everything from the V8.

Edmunds' Expert Review

Overall rating

There are few cars left like the BMW 6 Series, and fewer still with BMW discontinuing the 6 Series coupe for 2018. While we expect a new generation will debut next year, this year's 6 Series remains an excellent choice for luxury drop-top cruising.

Of course, there are sportier and smaller four-seat convertibles, and there are significantly more expensive ones too. But few can match the BMW 6 Series' blend of style, quality and comfort. Drivers will find both engine options satisfying, while available all-wheel drive allows four-season practicality. While the current generation is dated, we still think the 2018 6 Series is worth considering if you're looking for a stylish luxury convertible.

BMW 6 Series models

The 2018 BMW 6 Series is a four-seat convertible available in 640i and 650i trims. Some differences exist between the two (wheel size, the sound system and level of seat adjustability, for instance), but the trims primarily designate the type of the engine. The 640i has the six-cylinder, and the 650i has the V8. BMW makes every option and package available for both trims, ensuring variety no matter which engine you pick. Rear-wheel drive, which BMW calls sDrive, is standard, and all-wheel drive (xDrive) is optional.

Under the hood for the 640i is a turbocharged 3.0-liter engine (315 horsepower, 332 pound-feet of torque). An eight-speed automatic is the only transmission choice. Standard feature highlights include 18-inch wheels wrapped in all-season tires, keyless entry, a rearview camera, parking sensors, heated front seats, automatic high beams, navigation, Bluetooth, wireless phone charging, Wi-Fi hotspot, and a nine-speaker sound system.

The 650i adds a powerful turbocharged 4.4-liter V8 (445 hp, 480 lb-ft of torque). Aside from the engine, this trim gains a few features that are optional on the 640i, such as 19-inch wheels, upgraded power adjustable seats and a 12-speaker Harman Kardon sound system.

BMW offers a variety of premium color, upholstery and trim upgrades, providing buyers plenty of opportunities for personalization. While some stand-alone options are available, most upgrades are grouped in packages. A heated steering wheel only comes in the Cold Weather package, for instance, and you must order the Executive package for ventilated seats. The M Sport package introduces a sport body kit, a sport steering wheel, a higher top-speed limit, and package-specific 19-inch wheels with either all-season or summer tires.

Blind-spot monitoring is not standard but is available in the Driving Assistance package, which also includes a head-up display, lane departure warning, and front collision warning with low-speed automatic braking. An upgraded Driving Assistance Plus package adds adaptive cruise control and enhanced front collision mitigation. When you select the Parking Assistant package you get an automated parking system and side- and top-view cameras.

Trim tested

Edmunds has not yet driven any version of this vehicle. The following is our first take on what's significant about it and what you can expect.


Overallundefined / 5


The 2018 BMW 6 Series prioritizes comfort over sporty handling. Nevertheless, most drivers will enjoy the driving experience. The 6 Series rides comfortably over bumps, and there's plenty of power from both engine choices.


The 6 Series is a benchmark for front passenger comfort, with multi-adjustable seats and high-quality leather. Cramped rear seats are the unfortunate norm for four-seat convertibles.


Premium leather and attractive plastics adorn the 6 Series' interior. Operating most controls makes immediate sense, though the shifter takes a little getting used to. The convertible roof limits rear visibility, but that's a problem easily solved by putting the top down.


The 6 Series offers 12.4 cubic feet of trunk space with the top up and 10.6 cubic feet with the top down. That's quite roomy for a four-seat convertible at this price. A pass-through accommodates longer objects.


BMW's iDrive infotainment system is very useful once you learn it, and optional gizmos such as night vision easily impress. Still, we're disappointed that only Apple CarPlay is supported and not standard equipment.

Consumer reviews

There are no consumer reviews for the 2018 BMW 6 Series.

Trending topics in reviews

    Features & Specs

    640i xDrive 2dr Convertible AWD features & specs
    640i xDrive 2dr Convertible AWD
    3.0L 6cyl Turbo 8A
    MPG 19 city / 28 hwy
    Seats 4
    8-speed shiftable automatic
    315 hp @ 5800 rpm

    650i 2dr Convertible features & specs
    650i 2dr Convertible
    4.4L 8cyl Turbo 8A
    MPG 17 city / 25 hwy
    Seats 4
    8-speed shiftable automatic
    445 hp @ 5500 rpm

    650i xDrive 2dr Convertible AWD features & specs
    650i xDrive 2dr Convertible AWD
    4.4L 8cyl Turbo 8A
    MPG 16 city / 25 hwy
    Seats 4
    8-speed shiftable automatic
    445 hp @ 5500 rpm

    640i 2dr Convertible features & specs
    640i 2dr Convertible
    3.0L 6cyl Turbo 8A
    MPG 20 city / 29 hwy
    Seats 4
    8-speed shiftable automatic
    315 hp @ 5800 rpm

    See all Used 2018 BMW 6 Series features & specs


    Our experts like the 6 Series models:

    City Collision Mitigation
    Alerts you about potential collisions with a vehicle or pedestrian in front of you at low speeds, and can automatically apply the brakes.
    Night Vision with Pedestrian Detection
    Detects pedestrians in front of the car at night. Can also display the night-vision camera through the entertainment screen.
    Lane Departure Warning
    Lets you know if you're drifting out of your lane unintentionally (you didn't use your turn signal).


    Is the BMW 6 Series a good car?
    The Edmunds experts tested the 2018 6 Series both on the road and at the track. You probably care about BMW 6 Series fuel economy, so it's important to know that the 6 Series gets an EPA-estimated 19 mpg to 23 mpg, depending on the configuration. What about cargo capacity? When you're thinking about carrying stuff in your new car, keep in mind that the 6 Series has 11.0 cubic feet of trunk space. And then there's safety and reliability. Edmunds has all the latest NHTSA and IIHS crash-test scores, plus industry-leading expert and consumer reviews to help you understand what it's like to own and maintain a BMW 6 Series. Learn more
    Is the BMW 6 Series reliable?
    To determine whether the BMW 6 Series is reliable, read Edmunds' authentic consumer reviews, which come from real owners and reveal what it's like to live with the 6 Series. Look for specific complaints that keep popping up in the reviews, and be sure to compare the 6 Series's average consumer rating to that of competing vehicles. Learn more
    Is the 2018 BMW 6 Series a good car?
    There's a lot to consider if you're wondering whether the 2018 BMW 6 Series is a good car. Safety scores, fuel economy, cargo capacity and feature availability should all be factors in determining whether the 2018 6 Series is a good car for you. Check back soon for the official Edmunds Rating from our expert testing team Learn more
    How much should I pay for a 2018 BMW 6 Series?

    The least-expensive 2018 BMW 6 Series is the 2018 BMW 6 Series 640i 2dr Convertible (3.0L 6cyl Turbo 8A). Including destination charge, it arrives with a Manufacturer's Suggested Retail Price (MSRP) of about $86,700.

    Other versions include:

    • 640i xDrive 2dr Convertible AWD (3.0L 6cyl Turbo 8A) which starts at $89,700
    • 650i 2dr Convertible (4.4L 8cyl Turbo 8A) which starts at $98,300
    • 650i xDrive 2dr Convertible AWD (4.4L 8cyl Turbo 8A) which starts at $101,300
    • 640i 2dr Convertible (3.0L 6cyl Turbo 8A) which starts at $86,700
    Learn more
    What are the different models of BMW 6 Series?
    If you're interested in the BMW 6 Series, the next question is, which 6 Series model is right for you? 6 Series variants include 640i xDrive 2dr Convertible AWD (3.0L 6cyl Turbo 8A), 650i 2dr Convertible (4.4L 8cyl Turbo 8A), 650i xDrive 2dr Convertible AWD (4.4L 8cyl Turbo 8A), and 640i 2dr Convertible (3.0L 6cyl Turbo 8A). For a full list of 6 Series models, check out Edmunds’ Features & Specs page. Learn more

    More about the 2018 BMW 6 Series

    For shoppers in the market for an upscale convertible that combines elegant style, a luxurious interior and solid performance, the 2018 BMW 6 Series is worthy of serious consideration. Available with rear-wheel or all-wheel drive, a choice of two engines and a variety of packages and options, the 6 Series is well positioned to meet the needs of buyers sifting through the choices in a relatively narrow yet highly competitive market segment.

    The 6 Series was revamped in 2016 with new front and rear fascias, restyled LED headlights and new standard equipment. Changes to the model last year were minor but included an update to the BMW iDrive infotainment system. For 2018, a new M Sport package offers carbon-fiber trim and 20-inch wheels unique to the option.

    Premium materials are used throughout the 6 Series' interior, and these combine with an attractive design, well-placed controls and a wealth of standard comfort and convenience features to provide occupants with an engaging and comfortable environment. Those in the front seats are treated to plenty of leg- and hiproom, although backseat passengers will likely find the accommodations cramped.

    In standard trim, both the 640i and 650i come extremely well equipped with a host of interior, exterior and driver-assist features, such as leather seats, automatic headlights and a rearview camera. Optional packages and accessories allow buyers to customize their BMW with their choice of comfort, convenience and technology features. As with most BMWs, technology remains a hallmark, exemplified by the standard 10.2-inch color display and available safety systems such as frontal collision warning and automatic braking.

    A turbocharged 3.0-liter six-cylinder engine is standard power for the 640i, generating 315 horsepower and 332 pound-feet of torque. Stepping up to the 650i gets you a turbocharged 4.4-liter V8 that produces 445 hp and 480 lb-ft of torque. Both engines come mated to an eight-speed automatic transmission.

    On the road, the 6 Series is best when used for cruising. Although a rigid chassis design and advanced active suspension provide above-average handling ability, the 6 Series is clearly intended for comfortable touring rather than track-day handling. But performance from the two available engines is a major plus. The standard six-cylinder engine is capable of more than enough acceleration for most drivers, but those looking for some extra zip will want to test-drive the 650i with its more powerful V8. Let Edmunds help you find the right 2017 BMW 6 Series model that best suits your needs.

    Used 2018 BMW 6 Series Overview

    The Used 2018 BMW 6 Series is offered in the following submodels: 6 Series Convertible. Available styles include 640i xDrive 2dr Convertible AWD (3.0L 6cyl Turbo 8A), 650i 2dr Convertible (4.4L 8cyl Turbo 8A), 650i xDrive 2dr Convertible AWD (4.4L 8cyl Turbo 8A), and 640i 2dr Convertible (3.0L 6cyl Turbo 8A).

    What do people think of the 2018 BMW 6 Series?

    Consumer ratings and reviews are also available for the 2018 BMW 6 Series and all its trim types. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2018 6 Series.

    Edmunds Expert Reviews

    Edmunds experts have compiled a robust series of ratings and reviews for the 2018 BMW 6 Series and all model years in our database. Our rich content includes expert reviews and recommendations for the 2018 6 Series featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

    Our Review Process

    This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

    We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

    What's a good price for a New 2018 BMW 6 Series?

    Which 2018 BMW 6 Serieses are available in my area?

    Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2018 BMW 6 Series for sale near. There are currently 1 new 2018 6 Serieses listed for sale in your area, with list prices as low as $68,999 and mileage as low as 12239 miles. Simply research the type of car you're interested in and then select a car from our massive database to find cheap vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2018 BMW 6 Series.

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    Why trust Edmunds?

    Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color.

    Should I lease or buy a 2018 BMW 6 Series?

    Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

    Check out BMW lease specials