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 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
Front Leg Room (in)
42.6 42.2
Exterior Dimensions
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
Width, Max w/o mirrors (in)
70.9 70.5
Cargo Area Dimensions
Trunk Volume (ft³)
9.9 8
Brakes
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
Rear Brake Rotor Diam x Thickness (in)
11.8 11.8
Fuel Tank
Fuel Tank Capacity, Approx (gal)
16.9 14.5
Steering
Steering Type
Rack-Pinion Rack-Pinion
Turning Diameter - Curb to Curb (ft)
36.4 35.1
Tires
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
Rear Tire Order Code
NA NA
Weight Information
Base Curb Weight (lbs)
2888 3263
Wheels
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
Front Wheel Size (in)
18 X 8 17 X 8
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 - City (MPG)
20 22
Fuel Economy Est-Combined (MPG)
24 26
EPA Fuel Economy Est - Hwy (MPG)
30 34
Transmission
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
Reverse Ratio (:1)
3.33 3.35
Second Gear Ratio (:1)
2.05 2.06
Trans Order Code
NA ZMT
Summary
Vehicle Name
Porsche Boxster BMW Z4
Body Style
Convertible Roadster
Suspension
Suspension Type - Front (Cont.)
Strut Strut
Suspension Type - Rear
Strut Multi-Link
Suspension Type - Rear (Cont.)
Strut Multi-Link
Suspension Type - Front
Strut Strut
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
7.4 6.8

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