Compare 2015 Porsche Boxster vs 2015 BMW Z4

2015 Porsche Boxster
2015 BMW Z4
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2-Door Roadster
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 20 30 N/A $51,400
2-Door Roadster S 20 28 N/A $63,300
2-Door Roadster GTS 19 26 N/A $73,500
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2-Door Roadster sDrive28i
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster sDrive28i 22 34 $45,535 $48,950
2-Door Roadster sDrive35i 17 24 $52,895 $56,950
2-Door Roadster sDrive35is 17 24 $61,035 $65,800
Pricing
Invoice Price
N/A
$45,535
Manufacturer Suggested Retail Price
$51,400
$48,950
Monthly Payment Estimate
$857 / month
$816 / month
The Car Connection's Take
TCC Rating
9.0
7.8
TCC’s Bottom Line
The 2015 Porsche Boxster is a relative performance bargain, combining everyday usability with a balanced chassis and sweet engines. The 2015 BMW Z4 is on the pricier side of the roadster segment, but it offers a nice blend of comfort, sport, and technology.
TCC Likes
TCC Dislikes
Fuel Economy
City
20 mpg 22 mpg
Highway
30 mpg 34 mpg
Vehicle
EPA Classification
Two-Seaters Two-Seaters
Interior Dimensions
Front Leg Room (in)
42.6 42.2
Front Hip Room (in)
53.4 -
Front Head Room (in)
38.6 39.1
Passenger Capacity
2 2
Front Shoulder Room (in)
51.7 53.3
Exterior Dimensions
Width, Max w/o mirrors (in)
70.9 70.5
Track Width, Front (in)
60.1 59.5
Min Ground Clearance (in)
4.3 -
Length, Overall (in)
172.2 166.9
Height, Overall (in)
50.5 50.8
Track Width, Rear (in)
60.5 61.4
Wheelbase (in)
97.4 98.3
Cargo Area Dimensions
Trunk Volume (ft³)
9.9 8
Brakes
Rear Brake Rotor Diam x Thickness (in)
11.8 11.8
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Front Brake Rotor Diam x Thickness (in)
12.4 13
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes
Fuel Tank
Fuel Tank Capacity, Approx (gal)
16.9 14.5
Steering
Turning Diameter - Curb to Curb (ft)
36.4 35.1
Steering Type
Rack-Pinion Rack-Pinion
Tires
Rear Tire Order Code
NA NA
Front Tire Size
P235/45ZR18 P225/45VR17
Spare Tire Size
NA NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Rear Tire Size
P265/45ZR18 P225/45VR17
Weight Information
Base Curb Weight (lbs)
2888 3263
Wheels
Front Wheel Size (in)
18 X 8 17 X 8
Spare Wheel Size (in)
NA NA
Rear Wheel Material
Aluminum Aluminum
Rear Wheel Size (in)
18 X 9 17 X 8
Front Wheel Material
Aluminum Aluminum
Spare Wheel Material
NA NA
Electrical
Cold Cranking Amps @ 0° F (Primary)
340 -
Maximum Alternator Capacity (amps)
120 170
Engine
Engine Type
Premium Unleaded H-6 Intercooled Turbo Premium Unleaded I-4
Fuel System
Gasoline Direct Injection Gasoline Direct Injection
SAE Net Torque @ RPM
206 @ 4400 260 @ 1450
Engine Order Code
NA NA
Displacement
2.7 L/165 2.0 L/122
SAE Net Horsepower @ RPM
265 @ 6700 240 @ 5000
Mileage
EPA Fuel Economy Est - Hwy (MPG)
30 34
EPA Fuel Economy Est - City (MPG)
20 22
Fuel Economy Est-Combined (MPG)
24 26
Transmission
Reverse Ratio (:1)
3.33 3.35
Second Gear Ratio (:1)
2.05 2.06
Trans Order Code
NA ZMT
Fourth Gear Ratio (:1)
1.13 1.00
Trans Description Cont.
Manual w/OD Manual w/OD
Drivetrain
Rear Wheel Drive Rear Wheel Drive
Sixth Gear Ratio (:1)
0.84 0.68
First Gear Ratio (:1)
3.67 3.68
Seventh Gear Ratio (:1)
NA NA
Final Drive Axle Ratio (:1)
3.89 3.08
Third Gear Ratio (:1)
1.46 1.31
Trans Type
6 6
Fifth Gear Ratio (:1)
0.97 0.81
Trans Description Cont. Again
NA NA
Summary
Vehicle Name
Porsche Boxster BMW Z4
Body Style
Convertible Roadster
Suspension
Suspension Type - Front
Strut Strut
Suspension Type - Front (Cont.)
Strut Strut
Suspension Type - Rear
Strut Multi-Link
Suspension Type - Rear (Cont.)
Strut Multi-Link
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.4 6.8

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