2020 BMW 2 Series vs. 2019 Mercedes C-Class Cabriolet

Detailed Review, Specifications & Comparison

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Safety

Both the 2 Series and the C-Class Cabriolet have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, daytime running lights, rearview cameras, driver alert monitors, available all wheel drive and rear parking sensors.

For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, with its optional front crash prevention system, and its available headlight’s “Acceptable” rating, the Insurance Institute for Highway Safety grants the 2 Series the rating of “Top Pick” for 2018, a rating granted to only 104 vehicles tested by the IIHS. The C-Class Cabriolet has not been tested, yet.

Warranty

The 2 Series’ corrosion warranty is 7 years longer than the C-Class Cabriolet’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the 2 Series for 3 years and 36,000 miles. BMW will pay for oil changes, lubrication and any other required maintenance. Mercedes doesn’t pay scheduled maintenance for the C-Class Cabriolet.

Reliability

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the 2 Series’ reliability 15 points higher than the C-Class Cabriolet.

J.D. Power and Associates rated the 2 Series second among small premium cars in their 2018 Initial Quality Study. The C-Class Cabriolet isn’t in the top three in its category.

J.D. Power and Associates’ 2018 Initial Quality Study of new car owners surveyed provide the statistics that show that BMW vehicles are better in initial quality than Mercedes vehicles. J.D. Power ranks BMW 11th in initial quality, above the industry average. With 5 more problems per 100 vehicles, Mercedes is ranked 15th.

J.D. Power and Associates’ 2019 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that BMW vehicles are more reliable than Mercedes vehicles. J.D. Power ranks BMW 7th in reliability, above the industry average. With 12 more problems per 100 vehicles, Mercedes is ranked 13th.

From surveys of all its subscribers, Consumer Reports’ December 2018 Auto Issue reports that BMW vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks BMW 9 places higher in reliability than Mercedes.

Engine

The M240i’s standard 3.0 turbo 6 cyl. produces 80 more horsepower (335 vs. 255) and 96 lbs.-ft. more torque (369 vs. 273) than the C 300 Cabriolet’s standard 2.0 turbo 4 cyl.

Fuel Economy and Range

On the EPA test cycle the 2 Series Convertible gets better fuel mileage than the C-Class Cabriolet:

MPG

2 Series Convertible

RWD

Manual

M240i 3.0 turbo 6 cyl.

19 city/27 hwy

Auto

230i 2.0 turbo 4 cyl.

23 city/34 hwy

M240i 3.0 turbo 6 cyl.

22 city/30 hwy

AWD

Auto

230i 2.0 turbo 4 cyl.

21 city/31 hwy

M240i 3.0 turbo 6 cyl.

22 city/30 hwy

C-Class Cabriolet

RWD

Auto

300 2.0 turbo 4 cyl.

21 city/29 hwy

AWD

Auto

300 2.0 turbo 4 cyl.

21 city/29 hwy

AMG 43 3.0 turbo V6

18 city/25 hwy

Regenerative brakes improve the 2 Series’ fuel efficiency by converting inertia back into energy instead of wasting it. The C-Class Cabriolet doesn’t offer a regenerative braking system.

Environmental Friendliness

The U.S. Environmental Protection Agency (EPA) certifies the BMW 2 Series as a “Super Ultra Low Emissions Vehicle” (SULEV). The Mercedes C-Class Cabriolet is only certified to “Ultra Low Emissions Vehicle” (ULEV) standards.

Transmission

The 2 Series offers a manual transmission for better acceleration, control and fuel economy. The C-Class Cabriolet doesn’t offer a manual transmission.

The 2 Series Automatic’s launch control uses engine electronics to hold engine RPM’s precisely in order to provide the most stable and rapid acceleration possible, using all of the available traction. The C-Class Cabriolet doesn’t offer launch control.

Brakes and Stopping

The 2 Series stops shorter than the C-Class Cabriolet:

2 Series

C-Class

70 to 0 MPH

155 feet

158 feet

Car and Driver

Suspension and Handling

For better maneuverability, the 2 Series’ turning circle is 1 foot tighter than the C 300 Cabriolet’s (35.8 feet vs. 36.8 feet). The 2 Series xDrive’s turning circle is 2.6 feet tighter than the AMG C 43 Cabriolet’s (37.1 feet vs. 39.7 feet).

Chassis

The BMW 2 Series may be more efficient, handle and accelerate better because it weighs about 300 to 450 pounds less than the Mercedes C-Class Cabriolet.

The 230i is 9.8 inches shorter than the AMG C 43 Cabriolet, making the 2 Series easier to handle, maneuver and park in tight spaces.

Passenger Space

The 2 Series Convertible has .4 cubic feet more passenger volume than the C-Class Cabriolet (81.7 vs. 81.3).

Cargo Capacity

The 2 Series Convertible has a much larger trunk with its top down than the C-Class Cabriolet with its top down (9.9 vs. 7 cubic feet). The 2 Series Convertible has a much larger trunk with its top up than the C-Class Cabriolet with its top up (11.8 vs. 8.8 cubic feet).

Ergonomics

Heated windshield washer nozzles are standard on the 2 Series to prevent washer fluid and nozzles from freezing and help continue to keep the windshield clear in sub-freezing temperatures. The C-Class Cabriolet doesn’t offer heated windshield washer nozzles.

In poor weather, headlights can lose their effectiveness as grime builds up on their lenses. This can reduce visibility without the driver realizing. The 2 Series offers available headlight washers to keep headlight output high. The C-Class doesn’t offer headlight washers.

The 2 Series has a standard center folding armrest for the rear passengers. A center armrest helps make rear passengers more comfortable. The C-Class Cabriolet doesn’t offer a rear seat center armrest.

Recommendations

Consumer Reports® recommends the BMW 2 Series, based on reliability, safety and performance.

The M235i/M240i was chosen as one of Car and Driver’s “Top Ten” for 3 of the last 5 years. The C-Class Cabriolet has never been a Car and Driver “Top Ten” pick.

The 2 Series was chosen as one of Automobile Magazine’s “All Stars” in 2015. The C-Class Cabriolet has never been an “All Star.”

© 1991-2018 Advanta-STAR Automotive Research. All rights reserved.

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