2017 BMW M240i Convertible

2017 MODEL
$49,050 - $51,050 See Inventory Prices


Overall Rating



2017 BMW M240i Convertible Complete In-depth Review & Buying Guide

Owning a BMW car is a dream of many and what would be better than debuting with the 2017 BMW M240i Convertible. Belonging to the BMW 2 Series, the M240i is an upgraded version of the M235i. Looking at the modifications, the M240i comes with a more powerful engine and enhanced fuel economy.

Driving the 2017 BMW M240i Convertible is a power packed 3.0 L I-6 engine that is capable of delivering a maximum power of 335 hp. Moreover, the engine is mated with an 8-speed automatic transmission for smooth power delivery.

See detailed review »


Ferociously fast

Top-level handling capability

Highly attractive finishing on both outside and inside

Fuel economy is remarkable

Grabs attention with its convertible nature

Safety features are up-to-date


Space at the rear seats is not much comfortable

No AWD option

What's New?

Additional 15 hp of power and 39 lbs.-ft. of torque.

Fuel efficiency of the M240i

In terms of price, the base model of M 240i gets a hike of nearly $300 over the base model of M 235i convertible.


vehicle bio

base price



2dr Convertible

passenger capacity


top speed

163 mph



engine type


183 cu. in.


335 hp @ 5500 rpm


369 lb.-ft. @ 1520 rpm


8-speed automatic


suspension front

independent front strut suspension

suspension rear

independent rear multi-link suspension

brake rotors (f/r)

14.5 in. ventilated disc brakes/15 in. ventilated disc brakes



105.9 in.


175.9 in.


69.8 in.


55.6 in.

curb weight

3519 lbs.

ground clearance

5.1 in.


cargo volume

11.8 cu ft.


zero to 60 mph

4.5 sec.

standing ¼-mile

13.1 sec.

fuel economy


21/25/32 mpg

highway range

438.4 mi.


roadside assistance


Pictures & Videos


 2017 BMW M240i Convertible in Alpine White color  2017 BMW M240i Convertible in Black Sapphire Metallic color  2017 BMW M240i Convertible in Deep Sea Blue Metallic color  2017 BMW M240i Convertible in Estoril Blue Metallic color  2017 BMW M240i Convertible in Glacier White Metallic color  2017 BMW M240i Convertible in Jet Black color  2017 BMW M240i Convertible in Melbourne Red Metallic color  2017 BMW M240i Convertible in Midnight Blue color
Alpine White

Vehicle images are guides only and may not reflect the model's exact specifications/features– exact specifications/features should be confirmed with the seller.






Fuel Economy








Trims and Configurations


 2017 BMW M240i Convertible Base


335 hp @ 5500 rpm
Premium unleaded (recommended)
25 mpg


Style Prices MPG Engine Transmission Drivetrain Seats Colors
2dr Convertible (3.0L 6cyl Turbo 8A) Starting at $49,050 MSRP (21 mpg/25 mpg/32 mpg) 335 hp @ 5500 rpm3I6premium unleaded (recommended)
See Full Specs
8-speed shiftable automatic rear wheel drive N/A

 2017 BMW M240i Convertible M240i xDrive

M240i xDrive

335 hp @ 5500 rpm
Premium unleaded (recommended)
25 mpg


Style Prices MPG Engine Transmission Drivetrain Seats Colors
M240i xDrive 2dr Convertible AWD (3.0L 6cyl Turbo 8A) Starting at $51,050 MSRP (21 mpg/25 mpg/31 mpg) 335 hp @ 5500 rpm3I6premium unleaded (recommended)
See Full Specs
8-speed shiftable automatic all wheel drive N/A

Top BMW Cars


Engine: 600 hp @ 5750 rpm, 4.4 L gas

MPG: 18 mpg combined

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Engine: 315 hp @ 5800 rpm, 3 L gas

MPG: 23 mpg combined

2017 BMW 4 Series Gran Coupe

Engine: 248 hp @ 5200 rpm, 2 L gas

MPG: 27 mpg combined

2019 BMW 5 Series

Engine: 248 hp @ 5200 rpm, 2 L I-4

MPG: 27 combined


Engine: 600 hp @ 5750 rpm, 4.4 L gas

MPG: 19 mpg combined

2017 BMW 7 Series plug-in hybrid Sedan

MPG: 27 mpg combined

2017 BMW M760i

Engine: 601 hp @ 5500 rpm, 6.6 L gas

MPG: 16 mpg combined

2019 BMW 7 Series

Engine: 320 hp @ 5500 rpm3I-6

MPG: 23 combined

Expert Review

CARHP Editorial September 26, 2018


Overall Rating

Checking the competition, Audi and Mercedes have always been a major rival of the BMW cars. The M240i gets a direct competition from Audi's S5 Cabriolet and Mercedes Benz's AMG C43 Cabriolet. If we look at the rivals, their performance parameters are much comparable to the M240i but at the same time there selling prices are a bit too high.





Fuel Economy






2017 BMW M240i Convertible Features


BMW offers two distinct trims of the M240i Convertible, which are the M240i and M240i xDrive. The price of the base trim M240i is set at $49,050 while for owing the upper M240i xDrive trim one needs to pay a minimum amount of $51,050. However, regardless of the trim level, the engine performance remains the same.

Trim M240i M240i xDrive
MSRP $49,050 $51,050
Key Features Rear Wheel Drive All Wheel Drive
  Manual Anti-Whiplash Adjustable Front Head Restraints and Manual Adjustable Rear Head Restraints Other features same as the M240i
  Analog Display  
  Hands-Free Bluetooth & USB Audio Connection  
  FOB Controls -Inc: Trunk/Hatch/Tailgate, Windows and Sunroof/Convertible Roof  
  Tracker System  
  Leather/Metal-Look Gear Shift Knob  
  Dual Zone Front Automatic Air Conditioning  
  Radio w/Seek-Scan, Clock, Speed Compensated Volume Control, Aux Audio Input Jack, Steering Wheel Controls and External Memory Control  
  Perimeter/Approach Lights  
  SiriusXM Satellite Radio -inc: 1 year All Access subscription  

We recommend

The rear wheel drive for sure! It can burn rubber like a premium performance car, and yet still be easy on the pocket.

2017 BMW M240i Convertible Engine

As the BMW M235 becomes the M240i, the most significant change takes place under the hood...

...Other tweaks include auto rev matching for manual-equipped 2 Series models and wider gear ratios (automatic models) to improve fuel economy. -Digital Trends

Engine and transmission

Seeking beneath the bonnet of the M240i Convertible, there is a mighty 3.0-Litre TwinPower Turbo V6 engine that powers the vehicle. The maximum power offered by the engine is 335 hp while the maximum torque is 369 lbs.-ft. The convertible employs an 8-speed automatic transmission with the option of selecting the manual shift mode.

Models BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
MSRP $49,050 $61,100 $60,400
Engine 3.0L TwinPower Turbo Inline 6-Cylinder 3.0L TFSI V6 DOHC 3.0L V6 Biturbo
Transmission 8-speed automatic 7-speed automatic 9-speed automatic
Horsepower 335 hp @ 5500 rpm 333 hp @ 5500 rpm 362 hp @ 5500 rpm
Torque 369 lb-ft @ 1520 rpm 325 lb-ft @ 2900 rpm 384 lb-ft @ 2000 rpm

Evaluating the competitors of the little BMW Convertible, the highest power and torque is offered by the Mercedes C43 AMG. Conversely, the S5 is the least powerful, though not by much. For transmission, the Audi Cabriolet utilizes a 7-speed automatic transmission whereas, the Benz comes fitted with a 9-speed automatic transmission.


With the 0-60 mph acceleration time of 4.7 seconds, the Beemer is blazingly fast. One of the biggest advantages of BMW M240i over its rivals is its low emission figure, which corresponds to 7.0 tons/year.  

Models BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
0-60 MPH 4.7 sec 4.8 sec 4.6 sec
Quarter mile 13.2 sec 13.5 sec 13.1 sec
Engine 3.0L 3.0L 3.0L


(Tons/yr of CO2 Emissions @ 15K mi/year)

7.0 8.4 8.0

The 'AMG' is faster than the 'M', reaching 60 mph from a standstill in just 4.6 seconds. Moreover, the quarter mile time of AMG C43 is also the least at 13.1 seconds, followed by M240i's 13.2 seconds.

Ride and Handling

The ride quality of the M240i Convertible is outstanding thanks to its features like adaptive M suspension, twin-tube gas-pressure shock absorbers, dynamic stability control, and dynamic traction control. No matter at what speed the BMW M240i Convertible is moving, it always feels confident behind the wheel due to its variable sports steering.

Additionally, the convertible comes with M sports brakes along with dynamic brake control and cornering brake control to ensure complete speed regulation. The M240i offers four different driving modes namely Eco Pro, Comfort, Sport and Sport+ mode that varies the throttle response and gear ratios of the car.


For decelerating the vehicle on time, the tiny beemer comes equipped with 13.4-inch brakes at the front and 13-6-inch brakes at the rear.

Model BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
Brake Front (in.) 13.4 13.6 14.2
Brake Rear (in.) 13.6 13.0 12.6
Curb Weight (lbs.) 3790 4310 4145
60-0 MPH (ft.) N/A 105 106

Amidst the competing cars, the Mercedes AMG C43 has the biggest 14.2-inch front brakes whereas, the biggest rear brakes are that of the BMW.

2017 BMW M240i Convertible Fuel Economy


BMW's superlative fuel economy is what makes it stand out from the rest of the competition. The M240i offers 21 MPG of fuel economy in city conditions while this figure increases to 32 MPG when the car runs on highways.

Model BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
MPG (city) 21 18 19
MPG (highway) 32 26 26
MPG (combined) 25 21 22

Overall, the combined fuel economy of BMW is estimated to be 25 MPG, which is much better than the 21 MPG and 22 MPG offered by S5 and AMG C43 respectively.

2017 BMW M240i Convertible Interior

Slip inside the 2017 BMW 2 Series and you'll find highly adjustable sport seats that provide good support in spirited driving and above-average comfort on extended jaunts. The rear seats are as cramped as you'd expect from a car this size, making them best suited to small children or as a place to stash a jacket, purse or backpack. -Edmunds

Seating and Comfort

Inside the BMW convertible, it can barely accommodate 4 passengers at a time, two adults in the front and two kids counting the driver. Observing the space available for the passengers within the front row, the little M offers 40.5 inches of headroom, 54.4 inches of shoulder room and 41.5 inches of legroom.

Model BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
Passenger capacity 4 4 4
Front (Head/Shoulder/Leg) (In.) 40.5/54.4/41.5 40.0/54.3/41.3 38.8/54.8/42.0
Second (Head/Shoulder/Leg) (In.) 37.0/42.2/31.8 36.3/46.8/31.9 35.6/51.7/32.0

After comparing with the rivals, it can be concluded that the M240i has the largest headroom while the shoulder room and legroom are maximum in the Mercedes Benz AMG C43 Cabriolet. On the other hand, the largest shoulder room of 51.7 inches and legroom of 32.0 inches is again available with the Mercedes AMG C43.

Infotainment System

The M240i comes with a 6.5-inch infotainment system powered by the iDrive 6.0. The infotainment system supports

  • Navigation
  • Voice-commands
  • Satellite radio
  • Speed sensitive volume control
  • 7-speaker system with 205 Watts stereo output
  • Apple CarPlay (Optional)

Interior Features

The interiors of the Beemer are mesmerizing and there are many convenience features loaded inside which are no less than what's expected from a BMW. Following are the key attractions on the inside of M240i convertible:

  • Aluminum Hexagon interior trim
  • SensaTec upholstery
  • Three-spoke steering wheel with M-branding
  • Wireless charging
  • 2 one-touch power windows
  • Interior air filtration
  • Electro chromatic rearview mirror
  • Keyless ignition
  • Cruise control
  • 10-way power driver and passenger seats
  • Height adjustable driver seat

Cargo Capacity

Convertibles are not much known for their cargo storage space but the 11.8 cubic feet capacity offered by the M240i is quite impressive.

Model BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
Cargo Volume (ft.3) 11.8 10.2 8.8

Both the Audi S5 and Mercedes Benz AMG C43 have relatively smaller cargo capacities of 10.2 and 8.8 cubic feet respectively.

2017 BMW M240i Convertible Exterior

Befitting the "M" designation, the M240i dials up the visual muscularity to back up its additional performance. It boasts a deeper front spoiler, larger air intakes, contoured rocker panels, and a unique rear lower valance. Like most drop-tops, the convertibles look better top-down.  - Kelly Blue Book

Dimension and Weight

BMW M240i convertible is the lightest vehicle among the competitors with a curb weight of 3790 lbs. The convertible has a length of 175.9 inches and width of 69.8 inches with both the dimensions shorter than the other two rivaling cars.

Model BMW M240i Audi S5 Cabriolet Mercedes Benz AMG C43 Cabriolet
Curb weight (lbs.) 3790 4310 4145
Length(in) 175.9 182.7 184.9
Width(in) 69.8 73.0 71.3
Height(in) 55.6 54.3 55.4
Ground clearance (in) 5.1 4.3 3.6
Wheelbase (in) 105.9 108.3 111.8
Track width (in) F/R 59.9/61.3 62.5/62.0 62.1/61.2

However, it is the tallest car with a height of 55.6 inches trailed by Mercedes Benz AMG C43's 55.4 inches. The Audi and Merc both have lower ground clearance than the Beemer too, the Mercedes being dangerously low.

Exterior Features

  • 18-inch double spoke bi-colour alloy wheels
  • Ferric grey mirror caps
  • Sporty kidney bean grille
  • High-intensity Xenon headlights
  • Sports exhaust system
  • Aerodynamic kit

2017 BMW M240i Convertible Safety

For ensuring safe rides, the 2017 M240i Convertible offers various safety features as standard, including the following:

  • Programmable LED daytime running lights
  • Anti-lock braking system
  • Tire pressure monitor
  • Adaptive headlights
  • Daytime pedestrian protection
  • BMW Assist eCall Emergency Sos
  • Dual Stage Driver And Passenger Front Airbag
  • Electronic Stability Control (ESC)
  • ABS And Driveline Traction Control
  • Dual Stage Driver And Passenger Seat-Mounted Side Airbags
  • Driver And Passenger Side Airbag Head Extension
  • Outboard Front Lap And Shoulder Safety Belts -inc: Pretensioners
  • Airbag Occupancy Sensor

NHTSA and IIHS have not yet rated the car yet

2017 BMW M240i Convertible Competition

BMW M240i convertible vs Audi S5 Cabriolet

Like BMW, the Audi is also a German-based automaker. Comparing the prices, the S5 is offered at $61,100, which is almost $12,000 more than that of the BMW. Despite the higher pricing, the Audi lags behind the M240i in almost all major parameters such as power, torque, acceleration, fuel economy, and cargo space. However, the passenger space at the second row of S5 is superior to that of the M240i convertible.

BMW M240i convertible vs Mercedes Benz AMG C43 Cabriolet

Yet another German challenger is the AMG C43 Cabriolet, manufactured by Mercedes-Benz. The AMG comes at a huge price premium, $60,400 against the Beemer's $49,050. The C43 offers various advantages over the M240i, including superior engine, performance, better 0-60 mph and quarter mile time, bigger front brakes, and greater shoulder room and legroom at both the front and second row. On the contrary, the M240i is a better car when it comes to low emissions, mileage, ground clearance, and cargo capacity.

2017 BMW M240i Convertible Final Verdict

The 2017 BMW M240i Convertible comes with plenty of features and when compared to its major rivals, its price is quite low. Additionally, the quality of the BMW is top-notch and no compromise has been done with the performance or appearance of the little M. Overall, there is no hesitation in tilting towards this car.