Porsche Cayman vs. Mercedes-Benz SL-Class

Carmine Red
VS
Black

Key Specs

Kelley Blue Book Value

Kelley Blue Book Value
$63,914 - $68,549
$83,881 - $93,413

Expert Rating

Owner Reviews

Owner Reviews

Horsepower

Horsepower
300 hp
449 hp

Engine Type

Engine Type
2.0L Turbocharged Boxer 4
4.7L Bi

Interior Features

Keyless Entry

Keyless Entry
Optional
Not Available

Rain Sensing Wipers

Rain Sensing Wipers
Optional
Not Available

Heated Steering Wheel

Heated Steering Wheel
Optional
Not Available

Steering Wheel Controls

Steering Wheel Controls
Optional
Not Available

Cruise Control

Cruise Control
Not Available
Optional

Premium Sound System

Premium Sound System
Optional
Optional

Driver Restriction Features

Driver Restriction Features
Optional
Not Available

Front Leg Room

Front Leg Room
Not Available
42.9 in.

Front Head Room

Front Head Room
Not Available
39.1 in.

Trunk Volume

Trunk Volume
Not Available
8.5 cu. ft.

WiFi Hotspot

WiFi Hotspot
Optional
Not Available

Smart Device Integration

Smart Device Integration
Optional
Not Available

Climate Control

Climate Control
Optional
Not Available

Dual Zone

Dual Zone
Optional
Not Available

Navigation System

Navigation System
Optional
Not Available

Passengers

Passengers
2
2

Power Driver Seat

Power Driver Seat
Optional
Not Available

Power Passenger Seat

Power Passenger Seat
Optional
Not Available

Heated Front Seats

Heated Front Seats
Optional
Not Available

Cooled Front Seats

Cooled Front Seats
Optional
Not Available

Seat Memory

Seat Memory
Optional
Not Available

Driver Lumbar

Driver Lumbar
Optional
Not Available

Exterior Features

Hands Free Liftgate

Hands Free Liftgate
Optional
Not Available

Power Folding Mirror

Power Folding Mirror
Optional
Not Available

Rear Spoiler

Rear Spoiler
Optional
Not Available

Tire Width

Tire Width

Wheelbase

Wheelbase
97.4 in.
101.7 in.

Turning Radius

Turning Radius
36 ft.
36.2 ft.

Length

Length
172.4 in.
182.3 in.

Width

Width
70.9 in.
73.9 in.

Mechanical Specs

Weight

Weight
2943 - 3009 .lbs
3959 .lbs

Horsepower

Horsepower
300 hp
449 hp

Torque

Torque
280 ft. lbs.
516 ft. lbs.

Limited Slip Differential

Limited Slip Differential
Optional
Not Available

Performance Tires

Performance Tires
Optional
Not Available

Fuel Capacity

Fuel Capacity
14.3 - 16.9 gal.
19.8 gal.

Combined

Combined
11 - 14 mpg
9 - 13 mpg

City

City
21 mpg
17 mpg

Highway

Highway
28 mpg
25 mpg

Active Suspension

Active Suspension
Optional
Optional

Manual Mode

Manual Mode
Optional
Not Available

Safety Features

HID Headlights

HID Headlights
Optional
Not Available

Auto Leveling Headlights

Auto Leveling Headlights
Optional
Not Available

Adaptive Cruise Control

Adaptive Cruise Control
Optional
Optional

Blind Spot Monitor

Blind Spot Monitor
Optional
Optional

Lane Keeping Assist

Lane Keeping Assist
Not Available
Optional

Lane Departure Warning

Lane Departure Warning
Not Available
Optional

Tech Specs

Vehicle Name

Vehicle Name
Porsche 718 Cayman
Mercedes-Benz SL

Body Style

Body Style
Coupe
Roadster

Drivetrain

Drivetrain
Rear Wheel Drive
Rear Wheel Drive

EPA Classification

EPA Classification
Two-Seaters
Two-Seaters

Passenger Capacity

Passenger Capacity
2
2

Base Curb Weight

Base Curb Weight
2943 - 3009 lbs.
3959 lbs.

Fuel Economy Est-Combined

Fuel Economy Est-Combined
24 - 25 mpg.
20 mpg.

EPA Fuel Economy Est - City

EPA Fuel Economy Est - City
21 - 22 mpg.
17 mpg.

EPA Fuel Economy Est - Hwy

EPA Fuel Economy Est - Hwy
28 - 29 mpg.
25 mpg.

Engine Order Code

Engine Order Code
_PC18_
Not Available

Engine Type

Engine Type
Intercooled Turbo Premium Unleaded H-4
Twin Turbo Premium Unleaded V-8

Displacement

Displacement
2.0 L/121
4.7 L/285

Fuel System

Fuel System
Gasoline Direct Injection
Gasoline Direct Injection

Trans Order Code

Trans Order Code
250, 480, _PDK01
421

Trans Type

Trans Type
6 - 7
9

Trans Description Cont.

Trans Description Cont.
Auto-Shift Manual w/OD - Manual w/OD
Automatic w/OD

First Gear Ratio (:1)

First Gear Ratio (:1)
3.31 - 3.91
5.35

Second Gear Ratio (:1)

Second Gear Ratio (:1)
1.95 - 2.29
3.24

Third Gear Ratio (:1)

Third Gear Ratio (:1)
1.41 - 1.65
2.25

Fourth Gear Ratio (:1)

Fourth Gear Ratio (:1)
1.13 - 1.30
1.64

Fifth Gear Ratio (:1)

Fifth Gear Ratio (:1)
0.95 - 1.08
1.21

Sixth Gear Ratio (:1)

Sixth Gear Ratio (:1)
0.81 - 0.88
1.00

Reverse Ratio (:1)

Reverse Ratio (:1)
3.00 - 3.55
4.80

Final Drive Axle Ratio (:1)

Final Drive Axle Ratio (:1)
3.89
2.65

Tons/yr of CO2 Emissions @ 15K mi/year

Tons/yr of CO2 Emissions @ 15K mi/year
7.0 - 7.3
8.8

Suspension Type - Front

Suspension Type - Front
Strut
Multi-Link

Suspension Type - Rear

Suspension Type - Rear
Strut
Multi-Link

Suspension Type - Front (Cont.)

Suspension Type - Front (Cont.)
Strut
Multi-Link

Suspension Type - Rear (Cont.)

Suspension Type - Rear (Cont.)
Strut
Multi-Link

Front Tire Size

Front Tire Size
P235/35ZR20, P235/40ZR19, P235/45ZR18
P255/35YR19

Rear Tire Size

Rear Tire Size
P265/35ZR20, P265/40ZR19, P265/45ZR18
P285/30YR19

Front Wheel Size

Front Wheel Size
18 X 8 - 20 X 8.5 in.
19 X 8.5 in.

Rear Wheel Size

Rear Wheel Size
18 X 9.5 - 20 X 10.5 in.
19 X 9.5 in.

Front Wheel Material

Front Wheel Material
Aluminum - Forged Aluminum
Aluminum

Rear Wheel Material

Rear Wheel Material
Aluminum - Forged Aluminum
Aluminum

Steering Type

Steering Type
Rack-Pinion
Rack-Pinion

Turning Diameter - Curb to Curb

Turning Diameter - Curb to Curb
36 ft.
36.2 ft.

Brake Type

Brake Type
4-Wheel Disc
4-Wheel Disc

Brake ABS System

Brake ABS System
4-Wheel
4-Wheel

Disc - Front

Disc - Front
Yes
Yes

Disc - Rear

Disc - Rear
Yes
Yes

Front Brake Rotor Diam x Thickness

Front Brake Rotor Diam x Thickness
13 - 13.8 in.
14.2 in.

Rear Brake Rotor Diam x Thickness

Rear Brake Rotor Diam x Thickness
11.8 - 13.8 in.
12.6 in.

Fuel Tank Capacity, Approx

Fuel Tank Capacity, Approx
14.3 - 16.9 gal.
19.8 gal.

Wheelbase

Wheelbase
97.4 in.
101.7 in.

Length, Overall

Length, Overall
172.4 in.
182.3 in.

Width, Max w/o mirrors

Width, Max w/o mirrors
70.9 in.
73.9 in.

Height, Overall

Height, Overall
50.6 - 50.9 in.
51.2 in.

Track Width, Front

Track Width, Front
59.6 in.
62.8 in.

Track Width, Rear

Track Width, Rear
60.3 in.
63 in.

Min Ground Clearance

Min Ground Clearance
3.9 - 4.3 in.
Not Available

Seventh Gear Ratio (:1)

Seventh Gear Ratio (:1)
0.62
0.86

Model Group

Model Group
Cayman
SL

Vehicle Segment

Vehicle Segment
Luxury Sport
Luxury Sport

Vehicle Type

Vehicle Type
Coupe
Convertible

Engine Displacement Units

Engine Displacement Units
2.0
4.7

Engine Camshaft

Engine Camshaft
DOHC
DOHC

Engine Block Type

Engine Block Type
aluminum
aluminum

Engine Cylinder Count

Engine Cylinder Count
4
8

Engine Valve Count

Engine Valve Count
4
4