Mercedes-Benz C-Class vs BMW M3 Compare price, expert/user reviews, mpg, engines, safety, cargo capacity and other specs at a glance.

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2018 BMW M3 CS Sedan RWD
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User Ranking Drivers and owners ranked these cars in 9 categories.

New Car Pricing New listing price comparison and analysis.

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
MSRP
$55,950
Invoice
$52,593
Average Price Paid
$49,076
5 listings nationwide

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2018 BMW M3
CS Sedan RWD
No Data Available
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2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
No Data Available
2018 BMW M3
CS Sedan RWD
No Data Available

Used Car Pricing Used listing price comparison and analysis.

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
CarGurus Instant Market Value
$57,638
3 listings nationwide

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2018 BMW M3
CS Sedan RWD
CarGurus Instant Market Value
$59,544
69 listings nationwide

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Expert Reviews Reviews from CarGurus experts.

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
Christian Wardlaw Preview:

For 2020, every Mercedes-Benz C-Class receives more standard equipment. Mercedes-Benz makes its AMG Drive Unit, which is a driver-selectable traction system, optional for the AMG 43 co...

2018 BMW M3
CS Sedan RWD
Andrew Newton Preview:

In the world of German performance cars, the BMW M3 is one of the most prestigious names of all time. The latest version is very different from the original. The latest M3 is a luxuri...

User Reviews Reviews from CarGurus users who have driven or owned the car.

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
Sparthan writes:
Looks/Style Ranked 2020 BMW M4 better.
"Its just like GRRRRR and the mercades reminds me of a dinner plate ."
Front Seats Ranked 2020 BMW M4 better.
"The seats are just soft and comfy the mercades is rigid and weird"
20
GuruXZZ35 writes:
Front Seats Ranked 2020 Acura TLX V6 A-Spec FWD with Technology Package better.
"Comfort"
Cargo Capacity Ranked 2020 Acura TLX V6 A-Spec FWD with Technology Package better.
"Seemed like a larger trunk. "
2018 BMW M3
CS Sedan RWD
Adam writes:
Serious Performance for a sedan Can drive a family of more than 3
Power Ranked 2018 Porsche 911 Carrera GTS Coupe RWD better.
"Little Lighter/25 more hp to crank "
Handling Ranked 2018 Porsche 911 Carrera GTS Coupe RWD better.
"Because it does...it’s a coupe not a sedan "
10
Jcogan writes:
The Shelby hands-down is a better drivers car. Hard to believe I’m saying this but after driving both I could...
Back Seats Ranked 2018 Ford Mustang Shelby GT350 Fastback RWD worse.
"Of course being a four-door sedan the M3’s rear seats are much more accessible and usable."
Family Car Ranked 2018 Ford Mustang Shelby GT350 Fastback RWD worse.
"Of course being a four-door sedan the M3’s rear seats are much more accessible and usable."
65
darkmann writes:
Great ride. Enough power to take one to fun places. Exceptional handling
Looks/Style Ranked 2018 BMW M3 CS Sedan RWD better.
"The added carbon fiber trim pieces make the car look slightly more special"
Front Seats Ranked 2018 BMW M3 CS Sedan RWD better.
"No difference from regular M3"

Specs

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD
2018 BMW M3
CS Sedan RWD
Powertrain 9-Speed Automatic 7-Speed Dual Clutch
Drivetrain
AWD
RWD
Fuel Economy, City
21 MPG
16 MPG
Fuel Economy, Highway
29 MPG
22 MPG
Fuel Tank Volume 17.4 gal 15.8 gal
Engine
Fuel Type
Gasoline
Gasoline
Power
255 hp @ 5,800 RPM
454 hp @ 6,250 RPM
Torque
273 lb-ft @ 1,800 RPM
442 lb-ft @ 4,000 RPM
Cylinders
4 cylinders
6 cylinders
Compression Ratio
10.5:1
10.2:1
Displacement
2,000 cc
3,000 cc
Bore x Stroke
3.27 in x 3.62 in
3.31 in x 3.53 in
Safety
ABS Brakes Standard Standard
Driver Airbag Standard Standard
Passenger Airbag Standard Standard
Front Side Airbags Standard Standard
Rear Side Airbags Standard --
Curtain Airbags Standard Standard
NHTSA Crash Test Results
Comfort and Convenience
Leather Seats -- Standard
Air Conditioning Standard Standard
CD Player -- Standard
Radio Standard Standard
Power Windows Standard Standard
Power Door Locks Standard Standard
Driver Power Seats Standard Standard
Passenger Power Seats Standard Standard
Interior
Maximum Seating 4 seats 5 seats
Front Legroom 42 in 42 in
Back Legroom 32 in 35.1 in
Payload and Towing
Cargo Volume 8.8 cu ft 12 cu ft
Maximum Payload 882 lbs --
Exterior
Length 184.5 in 184.5 in
Width 79.4 in 80.2 in
Height 55.5 in 56.1 in
Wheelbase 111.8 in 110.7 in

Available Options

2020 Mercedes-Benz C-Class
C 300 4MATIC Cabriolet AWD

Exterior Colors

  • Black
  • Brilliant Blue Metallic
  • DESIGNO Cardinal Red Metallic
  • DESIGNO Diamond White Metallic
  • DESIGNO Selenite Grey MAGNO
  • Graphite Grey Metallic
  • Iridium Silver Metallic
  • Lunar Blue Metallic
  • Mojave Silver Metallic
  • Obsidian Black Metallic
  • Polar White
  • Selenite Grey Metallic

Option Packages

  • 12.3" Digital Instrument Cluster
  • AMG Line
  • DESIGNO Bengal Red Nappa Leather Package
  • Driver Assistance Package
  • Exterior Lighting Package
  • MB Entry Navigation
  • Multimedia Package
  • Parking Assistance Package
  • Head-Up Display
  • Black, Leather Upholstery
  • Cranberry Red/Black, Leather Upholstery
  • Magma Grey/Black, Leather Upholstery
  • Porcelain/Black, Leather Upholstery
  • Saddle Brown/Black, Leather Upholstery
  • Wheels: 19" 10-Spoke
  • Wheels: 19" AMG MULTISPOKE
  • Wheels: 19" AMG MULTISPOKE W/Black Accents
  • Wheels: 19" AMG Twin 5-Spoke W/Black Accents
  • Wheels: 19" Twin 5-Spoke
2018 BMW M3
CS Sedan RWD

Exterior Colors

  • Alpine White
  • Black Sapphire Metallic
  • Frozen Dark Blue II
  • Lime Rock Grey
  • San Marino Blue Metallic

Option Packages

  • Executive Package
  • M Carbon Ceramic Brake

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