Compare 2020 BMW Z4 vs 2020 Mercedes-Benz SLC Class vs 2019 Porsche 718

2020 BMW Z4
X
2020 Mercedes-Benz SLC Class
X
2019 Porsche 718
#5 in Coupes
X
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Select style
M40i Roadster
Style MPG City MPG Hwy Invoice MSRP
Z4 M40i Roadster N/A N/A $59,740 $63,700
2020 Mercedes-Benz SLC Class
Select style
GTS Roadster
Style MPG City MPG Hwy Invoice MSRP
718 Boxster GTS Roadster 19 25 N/A $82,800
718 Boxster Roadster 21 28 N/A $59,000
718 Boxster S Roadster 20 26 N/A $71,400
718 Cayman Coupe 21 28 N/A $56,900
718 Cayman GTS Coupe 19 25 N/A $80,700
718 Cayman S Coupe 20 26 N/A $69,300
Pricing
Invoice Price
$59,740
N/A
N/A
Manufacturer Suggested Retail Price
$63,700
N/A
$82,800
Monthly Payment Estimate
$1062 / month
N/A
$1380 / month
The Car Connection's Take
TCC Rating
6.4
5.6
7.2
TCC’s Bottom Line
The 2020 BMW Z4 keeps alive the Sunday drive. The 2020 Mercedes-Benz SLC-Class sings a pretty swan song—and you can hear it even when the top’s down. The 2019 Porsche 718 may never be the champion of the automaker’s lineup, but it’s a champ everywhere else.
TCC Likes
TCC Dislikes
Fuel Economy
City
0 mpg - 19 mpg
Highway
0 mpg - 25 mpg
Vehicle
EPA Classification
Two-Seaters - Two-Seaters
Interior Dimensions
Front Leg Room (in)
42.2 - -
Front Head Room (in)
38.9 - -
Passenger Capacity
2 - 2
Front Shoulder Room (in)
54.3 - -
Exterior Dimensions
Length, Overall (in)
170.7 - 173
Height, Overall (in)
51.4 - 50.1
Track Width, Rear (in)
62.6 - 60.4
Wheelbase (in)
97.2 - 97.4
Width, Max w/o mirrors (in)
73.4 - 70.9
Track Width, Front (in)
62.8 - 60.1
Min Ground Clearance (in)
- - 3.9
Cargo Area Dimensions
Trunk Volume (ft³)
9.9 - 9.7
Brakes
Brake ABS System
4-Wheel - 4-Wheel
Disc - Rear (Yes or )
Yes - Yes
Rear Brake Rotor Diam x Thickness (in)
12.8 - 11.8
Brake Type
4-Wheel Disc - 4-Wheel Disc
Rear Drum Diam x Width (in)
NA - NA
Disc - Front (Yes or )
Yes - Yes
Front Brake Rotor Diam x Thickness (in)
13.7 - 13
Drum - Rear (Yes or )
NA - NA
Fuel Tank
Fuel Tank Capacity, Approx (gal)
13.7 - 16.9
Steering
Steering Type
Rack-Pinion - Rack-Pinion
Turning Diameter - Curb to Curb (ft)
36.1 - 36.1
Tires
Spare Tire Size
NA - NA
Front Tire Order Code
NA - NA
Spare Tire Order Code
NA - NA
Rear Tire Size
P275/40WR18 - P265/35ZR20
Rear Tire Order Code
NA - NA
Front Tire Size
P255/40WR18 - P235/35ZR20
Weight Information
Base Curb Weight (lbs)
3457 - 3032
Wheels
Rear Wheel Material
Aluminum - Aluminum
Rear Wheel Size (in)
18 X 10 - 20 X 10
Front Wheel Material
Aluminum - Aluminum
Spare Wheel Material
NA - NA
Front Wheel Size (in)
18 X 9 - 20 X 8
Spare Wheel Size (in)
NA - NA
Electrical
Maximum Alternator Capacity (amps)
170 - -
Engine
Displacement
3.0 L/183 - 2.5 L/152
SAE Net Horsepower @ RPM
382 @ 5000 - 365 @ 6500
Engine Type
Intercooled Turbo Premium Unleaded I-6 - Intercooled Turbo Premium Unleaded H-4
Fuel System
Gasoline Direct Injection - Gasoline Direct Injection
SAE Net Torque @ RPM
369 @ 1600 - 309 @ 1900
Engine Order Code
NA - NA
Mileage
Fuel Economy Est-Combined (MPG)
- TBD - - 21
EPA Fuel Economy Est - Hwy (MPG)
- TBD - - 25
EPA Fuel Economy Est - City (MPG)
- TBD - - 19
Transmission
Trans Type
8 - 6
Fifth Gear Ratio (:1)
1.32 - 0.95
Trans Description Cont. Again
NA - NA
Eighth Gear Ratio (:1)
0.64 - -
Reverse Ratio (:1)
3.71 - 3.00
Second Gear Ratio (:1)
3.36 - 1.95
Trans Order Code
2TB - 480
Fourth Gear Ratio (:1)
1.72 - 1.13
Trans Description Cont.
Automatic w/OD - Manual w/OD
Seventh Gear Ratio (:1)
0.82 - -
Drivetrain
Rear Wheel Drive - Rear Wheel Drive
Sixth Gear Ratio (:1)
1.00 - 0.81
First Gear Ratio (:1)
5.25 - 3.31
Final Drive Axle Ratio (:1)
3.15 - 3.89
Third Gear Ratio (:1)
2.17 - 1.41
Summary
Body Style
Roadster - Convertible
Vehicle Name
BMW Z4 - Porsche 718 Boxster
Suspension
Suspension Type - Rear
Multi-Link - Strut
Suspension Type - Rear (Cont.)
Multi-Link - Strut
Suspension Type - Front
Strut - Strut
Suspension Type - Front (Cont.)
Strut - Strut
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
- TBD - - 8.4
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