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Compare 2014 Porsche Boxster vs 2014 BMW Z4

2014 Porsche Boxster Change
2014 BMW Z4 Change
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Selected Style 2-Door Roadster
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Body Style


Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 20 30 N/A $50,400
2-Door Roadster S 20 28 N/A $62,100
2-Door Roadster sDrive28i
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Body Style


Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster sDrive28i 22 34 $45,035 $48,950
2-Door Roadster sDrive35i 19 26 $52,395 $56,950
2-Door Roadster sDrive35is 17 24 $60,535 $65,800
Invoice Price
Manufacturer Suggested Retail Price
Monthly Payment Estimate
$840 / month
$816 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
/ 10
TCC Rating
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or “Go” (green) messages along with the numerical score so you can easily understand where we stand at a glance.

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Read Our Full Review
/ 10
TCC Rating
Read Our Full Review
TCC's Bottom Line The 2014 Porsche Boxster defines the luxury sports roadster segment with its power, grace, and style. The 2014 BMW Z4 offers a pleasant balance of luxury, comfort, and sport, but it is at the pricier end of the roadster spectrum.
TCC Likes
TCC Dislikes
Fuel Economy
Fuel Economy - City 20 mpg 22 mpg
Fuel Economy - Highway 30 mpg 34 mpg
EPA Classification Two-Seaters Two-Seaters
Interior Dimensions
Passenger Capacity 2 2
Front Shoulder Room (in) 51.7 53.3
Front Leg Room (in) 42.6 42.2
Front Hip Room (in) 53.4 -
Front Head Room (in) 38.6 39.1
Exterior Dimensions
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
Track Width, Front (in) 60.1 59.5
Length, Overall (in) 172.2 166.9
Cargo Area Dimensions
Trunk Volume (ft³) 9.9 8
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
Rear Drum Diam x Width (in) NA NA
Disc - Front (Yes or ) Yes Yes
Front Brake Rotor Diam x Thickness (in) 12.4 13
Fuel Tank
Fuel Tank Capacity, Approx (gal) 16.9 14.5
Turning Diameter - Curb to Curb (ft) 36.4 35.1
Steering Type Rack-Pinion Rack-Pinion
Spare Tire Order Code NA NA
Rear Tire Size P265/45ZR18 P225/45VR17
Rear Tire Order Code NA NA
Front Tire Size P235/45ZR18 P225/45VR17
Spare Tire Size NA NA
Front Tire Order Code NA NA
Weight Information
Base Curb Weight (lbs) 2888 3263
Front Wheel Material Aluminum Aluminum
Spare Wheel Material NA NA
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
Cold Cranking Amps @ 0° F (Primary) 340 -
Maximum Alternator Capacity (amps) 120 170
Displacement 2.7 L/165 2.0 L/122
SAE Net Horsepower @ RPM 265 @ 6700 240 @ 5000
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 @ 1250
Engine Order Code NA NA
Fuel Economy Est-Combined (MPG) 24 26
EPA Fuel Economy Est - Hwy (MPG) 30 34
EPA Fuel Economy Est - City (MPG) 20 22
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
Seventh Gear Ratio (:1) NA NA
Reverse Ratio (:1) 3.33 3.35
Second Gear Ratio (:1) 2.05 2.06
Trans Order Code 480 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
Body Style Convertible Roadster
Vehicle Name Porsche Boxster BMW Z4
Suspension Type - Rear Strut Multi-Link
Suspension Type - Rear (Cont.) Strut Multi-Link
Suspension Type - Front Strut Strut
Suspension Type - Front (Cont.) Strut Strut
Tons/yr of CO2 Emissions @ 15K mi/year 7.6 (Est) 6.9
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