Overview & Reviews

BMW has long offered fine driving cars for every luxury budget, but four-door models have generally been the company's bread and butter. The BMW 6 Series coupe and convertible are for those seeking two-door style in a high-end package that's a bit more extravagant than the norm. The current 6 Series follows in its predecessor's footsteps as a complement to BMW's 5 Series and 7 Series sedans, offering a similar range of six- and eight-cylinder power but adding a unique sense of exclusivity and style.

New or used, the 6 Series siblings rank among the more interesting luxury two-doors on the market. They have their faults, to be sure, and they also face stiff competition from several prestigious competitors. On the other hand, their technology is cutting-edge and their powertrains are superb. It's hard to go wrong with any 6 Series model that fits your budget.

Current BMW 6 Series
The current BMW 6 Series is offered as a coupe and a convertible. The convertible is notable for its clever soft-top roof design with a separately controlled rear window. You can lower that window with the roof up for added ventilation, or raise it as a wind deflector with the roof down.

The base 640i is powered by a turbocharged 3.0-liter inline-6 with 315 horsepower and 332 pound-feet of torque. The 650i steps up to a turbocharged 4.4-liter V8 that cranks out a formidable 445 hp and 480 lb-ft of torque. Rear-wheel drive and an eight-speed automatic transmission are standard on all models, with "xDrive" all-wheel drive optional. And yes, that includes the convertibles -- so if you want a 445-hp drop top with AWD and a fabric roof, BMW will be more than happy to build you one.

Standard features on the 640i include adaptive xenon headlights, adaptive suspension dampers, six-way power heated front seats with lumbar adjustments, leather upholstery, dual-zone automatic climate control and the iDrive electronics interface with a 10.2-inch display and navigation. The 650i adds larger wheels, an upgraded audio system and 16-way power front seats. In typical BMW fashion, the options list is generous and pricey, highlighted by side- and surround-view cameras, self-closing automatic doors, a leather-covered dashboard, adaptive cruise control, a night-vision camera and ceramic-trimmed knobs.

Despite its substantial size, the 6 Series is best for two passengers. The rear compartment is strictly for short trips unless you put a small child back there. However, those up front will be treated to first-class accommodations with very comfortable seats, top-notch materials and high-tech gizmos aplenty. Furthermore, the trunk is rather generous for a luxury sport coupe at 12.3 cubic feet. Even the convertible's trunk measures a decently sized 10.6 cubic feet with the top lowered. Retractable-hardtop convertibles typically hold much less than that with their roofs stowed away.

From behind the wheel, no one will mistake the 6 Series for a 4 Series. This burly grand tourer has few sporting pretensions, though it's far from clumsy and the steering is precise enough to make BMW's biggest two-door feel reasonably spry. Highway runs are where the 6 Series really excels, racking up hundreds of well-insulated, fatigue-free miles at a stretch with effortless passing power -- particularly from the otherworldly V8.

Used BMW 6 Series Models
The current, third-generation 6 Series debuted for 2012 with larger dimensions and more conservative styling than its rather avant-garde predecessor, as well as turbocharged power in place of that model's naturally aspirated engines. It's also the first 6 Series to offer all-wheel drive. The first-year 650i was marginally less powerful (400 hp and 450 lb-ft) and had a manual transmission option, while the 640i models weren't eligible for all-wheel drive until 2014. Changes have otherwise been minimal.

The previous, second-generation BMW 6 Series was produced from 2004-'10 in coupe and convertible body styles. Originally, this 6 Series came equipped with a 4.4-liter V8 rated at 325 hp and 330 lb-ft of torque and was known as the 645Ci. For 2006, the name changed to 650i (minus the "C") and its engine was updated to a 4.8-liter V8 that produced 360 hp and 360 lb-ft of torque. The 645Ci and 650i drive quite similarly -- the smaller V8 shares the 4.8-liter's athletic character but has a slightly less vigorous power delivery. If you find a well-kept 645Ci on the used market, you won't find it lacking from a performance standpoint.

Prior to 2008, the second-generation 6 Series offered three six-speed transmissions: a traditional manual, a traditional automatic and BMW's SMG, which used an electronically controlled clutch to provide both the responsiveness of a manual and the forget-about-it friendliness of an automatic. The SMG may sound tempting, but we'd steer clear, as its herky-jerky performance can make everyday driving a literal pain in the neck. Most 6 Series from this era were equipped with the traditional automatic, but it didn't become standard until 2010. The manual became an option at that point.

Shoppers should note that beyond the powertrain changes, in-car electronics were also upgraded over the years. Early models feature older versions of BMW's iDrive system, which was still in its nascent stages and quite frustrating to use. Gradual improvements were made, but it wasn't until 2010 that the system became fully worthwhile.

In reviews of the second-generation BMW 6 Series, we found that the ride was supple and quiet, the brakes were powerful, and despite nearly 2 tons of weight, handling limits remained high thanks to sophisticated tuning and a well-balanced chassis. Adding the Sport package firmed up the ride and increased cornering grip via a set of 19-inch wheels and tires, while the variable-ratio active steering quickened low-speed turning response.

As with any luxury touring coupe or convertible, the specific mission of this BMW 6 Series was to cover lots of road in a hurry while making its occupants look and feel great -- the front ones, anyway. Unfortunately, the 6 Series offered little of the rear seat space found in its contemporary 5 Series sedan counterpart despite similar midsize dimensions. Also, neither the 650i coupe nor the convertible were considered fashion leaders at the time, though their relative rarity today may make their unconventional lines more appealing.

Not counting the BMW 8 Series of 1990s vintage, the precursor to the modern 6 Series models is the first-generation 6 Series coupe produced from 1977-'89. All models used an inline six-cylinder engine ranging from 3.2 to 3.5 liters, tuned to varying degrees of power. Even the most potent version could only accelerate to 60 mph in the low 6-second range and grip the road in the upper 0.70g range -- modest by modern standards -- while the car's semi-trailing arm rear suspension never did the best job of keeping the car planted to the road. Still, it was an engaging car to drive in its day, and for that reason the original BMW 6 Series coupe retains an important place in BMW history.

User Reviews:

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  Awesome - 2012 BMW 6-Series
  By nautictalk - February 29 - 10:09 am

  I currently own a 750il and a Range Rover Supercharged. And I have had other vehicles like the Mercedes 320CLK convertible. But I must say, next to the RR, the new 650 convertible is the best car I have ever owned. I wanted the 2011 model, but felt it was just a tad too small for me. But the enlarged the new model signficantly and redesigned many signficant features. It drives like a big car and a sports car. Its sexy and really fun to drive. Very fast and love the rumble of the exhaust. The app option is great as I can listen to Pandora on my iPhone Very fast. And if you set the ride to comfort, it drives smooth and comfy. More so than the 750i. I highly recommend this car.

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  Thoroughly Impressed! - 2012 BMW 6-Series
  By porsche_05 - January 6 - 8:49 am

  I traded in my M3 convertible and purchased the 2012 650i. I went with the M3 in 2008 because the design of the previous model was just not to my taste but the 2012 model definitely turns heads. The 650 isnÂ’t the sports car the M3 was, but it more than makes it up in comfort and design. DonÂ’t get me wrong, the 4.4-liter, 32-valve 400-hp V-8 engine with TwinPower Turbo is plenty enough for any road in the US (excluding race tracks) for most drivers and enthusiasts. It is definitely a great balance of power, performance, gadgetry, and style. Much better than the previous model.

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  2012 BMW 650 M Sport - 2012 BMW 6-Series
  By bandt - December 6 - 3:35 pm

  I owned a 2009 650 convertible for three year and never had a seconds trouble with it. I now have a 2012 650 convertible with M Sport and the Bang and Olfsen sound system. This is the most amazing car that I have ever owned. The power is unreal, it can float across potholes (in Comfort + mode) or feel as connected to the road as the old M6. It is stunning to look at, especially in white, but the best part about the car is the new Bang sound system. It is crystal clear and LOUD enough to shake your clothes. You can describe it. You have to hear it. Im sorry about the post above that had a problem in the rain. So far, mine is better than my first one.

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  The 2012 BMW 650i is UNSAFE to drive in a thunderstorm. - 2012 BMW 6-Series
  By donotbuybmw - September 13 - 10:53 am

  The 2012 BMW 650i is UNSAFE to drive in a thunderstorm. I was driving North on Interstate 95 in the left lane at approximately 70 mph when I observed lightning strike about 200 feet ahead of me and to the right of the road. Almost all electrical functionality ceased operation immediately, including the engine and the power steering. Dozens of cars closer to the lightning than me were unaffected. The car has been in the BMW repair shop since July 22, 2011 (53 days and counting). Lightning did NOT strike the car. I observed and heard only one flash and thunderclap. The cloth convertible top is in pristine condition.

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  Unreliable starts - 2005 BMW 6-Series
  By samanthaat - June 30 - 12:58 pm

  At first I loved this car. Im a low mileage driver and BMW tells me the car is meant to be driven a lot. If you dont drive it a lot this car is a life of hell. The BMW dealer told me if I dont drive it at least one day a week for an hour the battery will die. He said there is too much draining the battery. Its not a week though. Seven starts drains the battery. I keep it on a trickle charge, but that apparently doesnt keep it from draining. After the battery drains a couple dozen times, its time for a new battery which today cost over $500. Thats not acceptable but what is really unacceptable is having an $80,000 car that leaves me stranded and calling AAA once a week.

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  Best bang for your buck. - 2006 BMW 6-Series
  By sigma95 - May 29 - 12:21 am

  First of all, you have to know what the 6-series is and is not. It is not a canyon-carver w/ its porcine weight, but a GT rocket ship most comfortable near three-digit speeds on open road. Its the 2nd most depreciating car on the market, so if you find a good used example, snatch it up quick and thank the previous owner for taking the full brunt of depreciation. No problems and smooth. No car for this $ gets the nods, 2nd looks, thumbs ups, and in one case actual cheers, for its mere presence. If youre a DIYer, get on bimmerfest and learn the easy maintenance steps and save even more $. Note: 0-60 is nothing remarkable. 60 - 120 is absolutely frightening.

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  Fun everyday - 2007 BMW 6-Series
  By jspeith - March 8 - 10:02 pm

  I have put about 2000 miles on this car in a month. This car begs to be driven hard. It does everything asked of it and more. The gurgle of the engine is the sweetest sound Ive heard. It has added a smile to my face everyday since I bought it. Pure fun. The car is extremely comfortable for two, tolerable for four. It is extremely smooth. Handling is superb especially in sport mode. It corners like its on rails. The best display of power is between 60 and 100 mph. I was a little hesitant to buy a car with such a haughty image in a fairly conservative Midwest town but after driving it I dont care what anyone thinks. This thing is heaven on wheels!

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  Convertable Top - 2007 BMW 6-Series
  By whitford - February 8 - 8:29 pm

  I bought my 650i in 9/16/2009 with 3864 miles at a reasonable price.I now have 24,500 miles on it. I love the cars looks, styling and driveablilty. My problem is the convertable top censor. I have had it to the dealership and they have been great, but they cannot find out what is causing the problem. I have had it to the dealer on at least five separate occasions, it works for a while and then the sensor shows the top is not closed properly. It started again today. Any ideas. I want to keep the car but I think I have a lemon.

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  Smooth and Powerful Convertible! - 2007 BMW 6-Series
  By GregB - November 2 - 2:00 am

  I bought the convertible three weeks ago and after 1500 miles I have to say that this is one sweet and powerful performance machine. Around the city, the gearing and torque make the ride seamless, and on the highway the car has a blacktop-eating ride that wants to run much faster than the law allows. Very happy with my CPO purchase - the car had depreciated $50K+ in three years, so with the extended CPO warranty to 100K miles and with BMW NA including free no-cost maintenance out to 100K miles as a sales incentive, it also fits the bill from a value standpoint. sweet convertible that gets many a look

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  Buy the best- my 15th BMW - 2010 BMW 6-Series
  By Jim - June 27 - 9:17 am

  This is my 55th car and my 15th BMW. I have always driven BMWs,Mercedes as well as all the Japanese competitors. I bought my 10 650 Convertible when I actually went in to buy another M3 Convertible and have no regrets. I am a small person so was concerned about the size of the car (I am 58") I got the fully loaded Sport with every available option and got a fantastic deal. Just 2 days after I bought it, I took it on a 2000 mile road trip, what an amazing car! I averaged 24-26 MPG (at between 80-90 MPH) having coming from an 09 M3 Coupe, I do miss that punch that the M3 delivers, but my 650 handles very well and is quite quick. The creature comforts are far superior to any competitors!