Compare BMW M4 Convertible vs Mercedes-AMG C63 Cabriolet vs Mercedes-AMG SLK 55

BMW M4 Convertible
2020 BMW M4 Convertible
Select configuration:
$77,650
Starting Price (MSRP)
8.1
BMW M4 Convertible For Sale BMW M4 Convertible Full Review
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Mercedes-AMG C63 Cabriolet
2021 Mercedes-AMG C63 Cabriolet
Select configuration:
$78,000
Starting Price (MSRP)
N/A
Mercedes-AMG C63 Cabriolet For Sale Mercedes-AMG C63 Cabriolet Full Review
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Mercedes-AMG SLK 55
2016 Mercedes-AMG SLK 55
Select configuration:
$72,600
Starting Price (MSRP)
N/A
Mercedes-AMG SLK 55 For Sale Mercedes-AMG SLK 55 Full Review
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Overview

Engine
3.0-liter Twin-Turbo Inline-6 Gas
Engine
4.0-liter Twin-Turbo V8 Gas
Engine
5.5-liter V8 Gas
Transmission
6-Speed Manual
7-Speed Automatic (+$2,900)
Transmission
9-Speed Automatic
Transmission
7-Speed Automatic
Drivetrain
Rear-Wheel Drive
Drivetrain
Rear-Wheel Drive
Drivetrain
Rear-Wheel Drive
Fuel Economy
City: 17 MPG
Hwy: 25 MPG
Fuel Economy
City: 17 MPG
Hwy: 24 MPG
Fuel Economy
City: 19 MPG
Hwy: 28 MPG
Fuel Tank Capacity
15.8 gallons
Fuel Tank Capacity
17.4 gallons
Fuel Tank Capacity
18.5 gallons
Seating Capacity
4 seater
Seating Capacity
4 seater
Seating Capacity
2 seater
Trunk Volume
7.8 ft³
Trunk Volume
8.8 ft³
Trunk Volume
6.4 ft³

Photos

22
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35
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49
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Performance Specs

Engine and Transmission

Engine
3.0-liter Twin-Turbo Inline-6 Gas
4.0-liter Twin-Turbo V8 Gas
5.5-liter V8 Gas
Horsepower
425 hp @ 5500 rpm
469 hp @ 5500 rpm
415 hp @ 6800 rpm
Torque
406 lb-ft @ 1850 rpm
479 lb-ft @ 1750 rpm
398 lb-ft @ 4500 rpm
Transmission
6-Speed Manual
7-Speed Automatic (+$2,900)
9-Speed Automatic
7-Speed Automatic
Drivetrain
Rear-Wheel Drive
Rear-Wheel Drive
Rear-Wheel Drive

Weight and Towing

Curb Weight
4,110 lbs
4,255 lbs
3,583 lbs

Fuel and MPG

Fuel Economy

Combined
20 MPG
20 MPG
22 MPG
City
17 MPG
17 MPG
19 MPG
Highway
25 MPG
24 MPG
28 MPG

Emissions

CO2 Emissions @ 15K mi/year
8.8 Tons/yr
8.9 (Est) Tons/yr
8.0 (Est) Tons/yr

Fuel Tank

Fuel Tank Capacity
15.8 gallons
17.4 gallons
18.5 gallons
Cruising Range City
268.6 miles
295.8 miles
351.5 miles
Cruising Range Highway
395 miles
417.6 miles
518 miles

Dimensions and Measurement

Exterior Dimensions

Length
184.5 in
187.1 in
163.2 in
Height
54.6 in
55.3 in
51.2 in
Max Width
73.6 in
73.9 in
71.5 in
Front Width
62.2 in
64.4 in
61 in
Rear Width
63.1 in
62.7 in
61.7 in
Wheelbase
110.7 in
111.8 in
95.7 in
Ground Clearance
N/A
4 in
N/A

Interior Space

Seating Capacity
4 seater
4 seater
2 seater
Front Seat Leg Room
42.2 in
42 in
42.5 in
Front Seat Headroom
40.4 in
38.8 in
39.1 in
Front Seat Shoulder Room
55.3 in
54.8 in
52.2 in
Rear Seat Leg Room
33.1 in
32 in
N/A
Rear Seat Headroom
37.1 in
35.6 in
N/A
Rear Seat Shoulder Room
49.8 in
47.8 in
N/A

Cargo Space

Trunk Volume
7.8 ft³
8.8 ft³
6.4 ft³

Wheels and Suspension

Steering

Steering Type
Rack-Pinion
Rack-Pinion
Rack-Pinion
Turning Diameter
40 ft
37.1 ft
34.5 ft

Wheels

Wheels Type
Aluminum Wheels
Aluminum Wheels
Aluminum Wheels
Front Wheel Size
18" x 9"
18" x 9"
18" x 8"
Rear Wheel Size
18" x 10"
18" x 10.5"
18" x 9"

Suspension

Front Suspension
Strut
Strut
Strut
Rear Suspension
Multi-Link
Multi-Link
Multi-Link

Tires

Front Tire
P255/40YR18
P255/40ZR18
P235/40YR18
Rear Tire
P275/40YR18
P285/35ZR18
P255/35YR18
Spare Tire
N/A
N/A
Compact

Colors and Materials

Standard Exterior Colors

Alpine White
Polar White
  • Black
  • Mars Red
  • Polar White

Optional Exterior Colors

  • Austin Yellow Metallic
  • Black Sapphire Metallic
  • Mineral Gray Metallic
  • Mineral White Metallic
  • Sakhir Orange II Metallic
  • San Marino Blue Metallic
  • Yas Marina Blue Metallic
  • Azurite Black Metallic, Priority 1. Build Out:05/31/2019
  • Champagne Quartz Metallic, Priority 1. Build Out:05/31/2019
  • Smoked Topaz Metallic, Priority 1
  • Brilliant Blue Metallic
  • Iridium Silver Metallic
  • Obsidian Black Metallic
  • Selenite Grey Metallic
  • designo Cardinal Red Metallic
  • designo Diamond White Metallic
  • designo Cashmere White Magno
  • Diamond Silver Metallic
  • Indium Gray Metallic
  • Iridium Silver Metallic
  • Lunar Blue Metallic
  • Obsidian Black Metallic
  • Selenite Grey Metallic
  • designo Cardinal Red Metallic
  • designo Diamond White Metallic
  • designo Magno Shadow Grey

Standard Interior Materials

  • Black, Extended Merino Leather Upholstery
  • Sakhir Orange/Black, Extended Merino Leather Upholstery
  • Silverstone, Extended Merino Leather Upholstery
  • Black, MB-Tex/DINAMICA Upholstery
  • Bengal Red/Black, Premium Leather Upholstery
  • Black, AMG Carbon Styling Nappa Leather Upholstery
  • Black, Premium Leather Upholstery
  • Sahara Beige, Premium Leather Upholstery

Optional Interior Materials

  • Amaro Brown, Individual Extended Merino Leather Upholstery
  • Black, Full Merino Leather Upholstery
  • Cohiba Brown, Individual Extended Merino Leather Upholstery
  • Golden Brown, Individual Extended Merino Leather Upholstery
  • Nutmeg, Individual Extended Merino Leather Upholstery
  • Opal White, Individual Extended Merino Leather Upholstery
  • Sakhir Orange/Black, Full Merino Leather Upholstery
  • Silverstone, Full Merino Leather Upholstery
  • Black, Perforated Nappa Leather Upholstery
  • Magma Grey/Black, Perforated Nappa Leather Upholstery
  • Platinum White/Black, Perforated Nappa Leather Upholstery
  • Red Pepper/Black, Perforated Nappa Leather Upholstery
N/A

Features and Options

Infotainment

HD Radio
Standard
Standard
Standard
Bluetooth Connection
Standard
Standard
Standard
Hard Disk Drive Media Storage
Standard
Optional
Optional
Premium Sound System
Standard
Standard
Standard
Satellite Radio
Standard
Standard
Standard
Smart Device Integration
Standard
Standard
Not Available
WiFi Hotspot
Standard
Standard
Not Available
Auxiliary Audio Input
Standard
Standard
Standard
MP3 Player
Standard
Standard
Standard

Interior Trim

Bucket Seats
Standard
Not Available
Standard
Cloth Seats
Standard
Optional
Standard
Leather Seats
Standard
Optional
Standard
Leather Steering Wheel
Standard
Standard
Standard
Premium Synthetic Seats
Standard
Standard
Standard
Vinyl Seats
Standard
Optional
Standard
Woodgrain Interior Trim
Standard
Standard
Not Available
Sun/Moonroof
Not Available
Not Available
Standard

Comfort

Head-Up Display
Optional
Optional
Not Available
Navigation System
Standard
Optional
Optional
Steering Wheel Audio Controls
Standard
Standard
Standard
Power Mirror(s)
Standard
Standard
Standard
A/C
Standard
Standard
Standard
Adaptive Cruise Control
Not Available
Optional
Not Available
Automatic Parking
Optional
Optional
Not Available
Climate Control
Standard
Standard
Optional
Cruise Control
Standard
Standard
Standard
Heated Front Seat(s)
Standard
Not Available
Standard
Heated Steering Wheel
Optional
Not Available
Not Available
Keyless Entry
Standard
Standard
Standard
Multi-Zone A/C
Standard
Standard
Optional
Power Driver Seat
Standard
Standard
Standard
Power Passenger Seat
Standard
Standard
Standard
Remote Engine Start
Not Available
Standard
Not Available
Seat Memory
Standard
Standard
Standard
Universal Garage Door Opener
Standard
Standard
Standard
Keyless Start
Standard
Standard
Standard
Telematics
Standard
Standard
Standard

Safety

Safety Features

Back-Up Camera
Standard
Standard
Not Available
Rear Parking Aid
Standard
Not Available
Optional
Blind Spot Monitor
Optional
Standard
Optional
Lane Departure Warning
Standard
Optional
Optional
Lane Keeping Assist
Standard
Optional
Not Available
ABS
Standard
Standard
Standard
Tire Pressure Monitor
Standard
Standard
Standard
Brake Assist
Standard
Standard
Standard
Stability Control
Standard
Standard
Standard
Traction Control
Standard
Standard
Standard

Airbags

Driver Air Bag
Standard
Standard
Standard
Front Head Air Bag
Not Available
Standard
Standard
Front Side Air Bag
Standard
Standard
Standard
Knee Air Bag
Standard
Standard
Standard
Passenger Air Bag
Standard
Standard
Standard
Rear Head Air Bag
Not Available
Standard
Not Available
Rear Side Air Bag
Not Available
Standard
Not Available

Warranty

Warranty Summary

Basic
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Corrosion
12 Years / Unlimited Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Drivetrain
4 Years / 50,000 Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles
Maintenance
3 Years / 36,000 Miles
N/A
N/A
Roadside Assistance
4 Years / Unlimited Miles
4 Years / 50,000 Miles
4 Years / 50,000 Miles