2020 BMW 4 Series Convertible vs. 2019 Mercedes C-Class Cabriolet

Detailed Review, Specifications & Comparison

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Safety

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

Both the 4 Series Convertible 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, blind spot warning systems, rearview cameras, rear cross-path warning, available all wheel drive and around view monitors.

Warranty

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

The 4 Series Convertible’s corrosion warranty is 7 years longer than the C-Class Cabriolet’s (12 vs. 5 years).

BMW pays for scheduled maintenance on the 4 Series Convertible 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

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

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 4 Series Convertible’s reliability 33 points higher than the C-Class Cabriolet.

J.D. Power and Associates rated the 4 Series Convertible first among compact premium cars in their 2018 Initial Quality Study. The C-Class Cabriolet isn’t in the top three.

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

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The 440i Convertible’s standard 3.0 turbo 6 cyl. produces 65 more horsepower (320 vs. 255) and 57 lbs.-ft. more torque (330 vs. 273) than the C 300 Cabriolet’s standard 2.0 turbo 4 cyl.

Fuel Economy and Range

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On the EPA test cycle the 4 Series Convertible gets better fuel mileage than the C-Class Cabriolet:

MPG

4 Series Convertible

RWD

430i 2.0 turbo 4 cyl.

23 city/34 hwy

440i 3.0 turbo 6 cyl.

22 city/29 hwy

AWD

430i 2.0 turbo 4 cyl.

22 city/32 hwy

440i 3.0 turbo 6 cyl.

20 city/28 hwy

C-Class Cabriolet

RWD

300 2.0 turbo 4 cyl.

21 city/29 hwy

AWD

300 2.0 turbo 4 cyl.

21 city/29 hwy

AMG 43 3.0 turbo V6

18 city/25 hwy

Regenerative brakes improve the 4 Series Convertible’s 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

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

The U.S. Environmental Protection Agency (EPA) certifies the BMW 4 Series Convertible as a “Super Ultra Low Emissions Vehicle” (SULEV). The Mercedes C-Class Cabriolet is only certified to “Ultra Low Emissions Vehicle” (ULEV) standards.

Suspension and Handling

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For better handling and stability, the track (width between the wheels) on the 4 Series Convertible is 1.6 inches wider in the rear than the average track on the C-Class Cabriolet.

Chassis

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

The 4 Series Convertible’s standard power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The C-Class Cabriolet doesn’t offer a retractable hardtop.

Passenger Space

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The 4 Series Convertible has 8.7 cubic feet more passenger volume than the C-Class Cabriolet (90 vs. 81.3).

The 4 Series Convertible has 1.6 inches more front headroom, .2 inches more front legroom, .5 inches more front shoulder room, 1.5 inches more rear headroom and 1.1 inches more rear legroom than the C-Class Cabriolet.

Cargo Capacity

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

The 4 Series Convertible has a larger trunk with its top down than the C-Class Cabriolet with its top down (7.8 vs. 7 cubic feet). The 4 Series Convertible has a much larger trunk with its top up than the C-Class Cabriolet with its top up (13.1 vs. 8.8 cubic feet).

To make loading groceries and cargo easier when your hands are full, the 4 Series Convertible’s available trunk can be opened just by kicking your foot under the back bumper, leaving your hands completely free. The C-Class Cabriolet doesn’t offer a hands-free gesture to open its trunk, forcing you to put cargo down if your hands are full.

Ergonomics

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

Heated windshield washer nozzles are standard on the 4 Series Convertible 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.

Recommendations

© 1999 - 2019 Advanta-STAR Automotive Research. All rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America. If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. 6IUEX-0KENZ 45.55.47.189 2019/10/22

The 4 Series Convertible was chosen as one of Car and Driver’s “Top Ten” in 2014. The C-Class Cabriolet has never been a Car and Driver “Top Ten” pick.

The 4 Series Convertible was chosen as one of Automobile Magazine’s “All Stars” in 2014. The C-Class Cabriolet has never been an “All Star.”

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

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