Compare 2016 BMW Z4 vs 2016 Mercedes-Benz SLK Class vs 2016 Porsche Boxster

2016 BMW Z4
X
2016 Mercedes-Benz SLK Class
X
2016 Porsche Boxster
X
Select style
2-Door Roadster sDrive28i
Style MPG City MPG Hwy Invoice MSRP
Z4 2-Door Roadster sDrive28i 22 34 $46,225 $49,700
Z4 2-Door Roadster sDrive35i 17 24 $53,400 $57,500
Z4 2-Door Roadster sDrive35is 17 24 $61,540 $66,350
Select style
2-Door Roadster AMG SLK 55
Style MPG City MPG Hwy Invoice MSRP
SLK 2-Door Roadster AMG SLK 55 19 28 $67,518 $72,600
SLK 2-Door Roadster SLK 300 25 32 $43,710 $47,000
SLK 2-Door Roadster SLK 350 21 29 $55,056 $59,200
Select style
2-Door Roadster
Style MPG City MPG Hwy Invoice MSRP
Boxster 2-Door Roadster 20 30 N/A $52,100
Boxster 2-Door Roadster Black Edition 20 30 N/A $59,100
Boxster 2-Door Roadster GTS 19 26 N/A $74,600
Boxster 2-Door Roadster S 20 28 N/A $63,900
Boxster 2-Door Roadster Spyder 18 24 N/A $82,100
Pricing
Invoice Price
$46,225
$67,518
N/A
Manufacturer Suggested Retail Price
$49,700
$72,600
$52,100
Monthly Payment Estimate
$828 / month
$1210 / month
$868 / month
The Car Connection's Take
TCC Rating
7.8
8.2
8.8
TCC’s Bottom Line
While it isn't as agile as the Porsche Boxster it is priced against, the 2016 BMW Z4 balances sportiness with comfort and a comfortable cabin. The 2016 Mercedes-Benz SLK-Class is more of a weekend-getaway machine than a canyon-carver; but with mini-SL style and some unrivaled tech features, if offers up roadster thrills with fewer sacrifices in comfort. The 2016 Porsche Boxster is a thrill to drive; but beyond that it's a great car in nearly every way, and one of the best-value sports cars you can get.
TCC Likes
TCC Dislikes
Fuel Economy
City
22 mpg 19 mpg 20 mpg
Highway
34 mpg 28 mpg 30 mpg
Vehicle
EPA Classification
Two-Seaters Two-Seaters Two-Seaters
Interior Dimensions
Front Leg Room (in)
42.2 42.5 42.6
Front Head Room (in)
39.1 39.1 38.6
Passenger Capacity
2 2 2
Front Shoulder Room (in)
53.3 52.2 51.7
Passenger Volume (ft³)
- 48.8 -
Front Hip Room (in)
- - 53.4
Exterior Dimensions
Height, Overall (in)
50.8 51.2 50.5
Track Width, Rear (in)
61.4 61.7 60.5
Wheelbase (in)
98.3 95.7 97.4
Width, Max w/o mirrors (in)
70.5 71.5 70.9
Track Width, Front (in)
59.5 61 60.1
Length, Overall (in)
166.9 163.2 172.2
Min Ground Clearance (in)
- - 4.3
Cargo Area Dimensions
Trunk Volume (ft³)
8 6.4 9.9
Brakes
Rear Brake Rotor Diam x Thickness (in)
11.8 13 11.8
Brake Type
4-Wheel Disc 4-Wheel Disc 4-Wheel Disc
Rear Drum Diam x Width (in)
NA NA NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
13 14.2 12.4
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
14.5 18.5 16.9
Steering
Turning Diameter - Curb to Curb (ft)
35.1 34.5 36.4
Steering Type
Rack-Pinion Rack-Pinion Rack-Pinion
Tires
Rear Tire Size
P225/45VR17 P255/35YR18 P265/45ZR18
Rear Tire Order Code
NA NA NA
Front Tire Size
P225/45VR17 P235/40YR18 P235/45ZR18
Spare Tire Size
NA Compact NA
Front Tire Order Code
NA NA NA
Spare Tire Order Code
NA NA NA
Weight Information
Base Curb Weight (lbs)
3263 3583 2888
Wheels
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
NA Steel NA
Front Wheel Size (in)
17 X 8 18 X 8 18 X 8
Spare Wheel Size (in)
NA Compact NA
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
17 X 8 18 X 9 18 X 9
Electrical
Maximum Alternator Capacity (amps)
170 - 120
Cold Cranking Amps @ 0° F (Primary)
- - 340
Engine
Engine Type
Intercooled Turbo Premium Unleaded I-4 Premium Unleaded V-8 Premium Unleaded H-6
Fuel System
Gasoline Direct Injection Gasoline Direct Injection Gasoline Direct Injection
SAE Net Torque @ RPM
260 @ 1450 398 @ 4500 206 @ 4400
Engine Order Code
NA NA NA
Displacement
2.0 L/122 5.5 L/333 2.7 L/165
SAE Net Horsepower @ RPM
240 @ 5000 415 @ 6800 265 @ 6700
Mileage
EPA Fuel Economy Est - City (MPG)
22 19 20
Fuel Economy Est-Combined (MPG)
26 22 24
EPA Fuel Economy Est - Hwy (MPG)
34 28 30
Transmission
Reverse Ratio (:1)
3.35 3.42 3.33
Second Gear Ratio (:1)
2.06 2.86 2.05
Trans Order Code
ZMT NA NA
Fourth Gear Ratio (:1)
1.00 1.37 1.13
Trans Description Cont.
Manual w/OD Automatic w/OD Manual w/OD
Seventh Gear Ratio (:1)
NA 0.73 NA
Drivetrain
Rear Wheel Drive Rear Wheel Drive Rear Wheel Drive
Sixth Gear Ratio (:1)
0.68 0.82 0.84
First Gear Ratio (:1)
3.68 4.38 3.67
Final Drive Axle Ratio (:1)
3.08 2.82 3.89
Third Gear Ratio (:1)
1.31 1.92 1.46
Trans Type
6 7 6
Fifth Gear Ratio (:1)
0.81 1.00 0.97
Trans Description Cont. Again
NA NA NA
Summary
Vehicle Name
BMW Z4 Mercedes-Benz SLK Porsche Boxster
Body Style
Roadster Roadster Convertible
Suspension
Suspension Type - Rear
Multi-Link Multi-Link Strut
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link Strut
Suspension Type - Front
Strut Strut Strut
Suspension Type - Front (Cont.)
Strut Strut Strut
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
6.8 8.0 (Est) 7.4

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