Compare 2011 BMW Z4 vs 2011 Porsche Boxster

2011 BMW Z4
2011 Porsche Boxster
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2-Door Roadster sDrive30i
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster sDrive30i 18 28 $43,655 $47,450
2-Door Roadster sDrive35i 19 26 $49,080 $53,350
2-Door Roadster sDrive35is 17 24 $57,500 $62,500
Select style
2-Door Roadster
Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 19 27 $43,110 $48,100
2-Door Roadster S 19 26 $52,560 $58,600
2-Door Roadster Spyder 19 26 $55,440 $61,800
Pricing
Invoice Price
$43,655
$43,110
Manufacturer Suggested Retail Price
$47,450
$48,100
Monthly Payment Estimate
$791 / month
$802 / month
The Car Connection's Take
TCC Rating
7.8
9.0
TCC’s Bottom Line
The 2011 BMW Z4 is an exhilarating sports car, and one of the better choices for touring, but next to other roadsters it's pricey. The 2011 Porsche Boxster is a fun, attractive, and capable roadster-everything you want it to be.
TCC Likes
TCC Dislikes
Fuel Economy
City
18 mpg 19 mpg
Highway
28 mpg 27 mpg
Vehicle
EPA Classification
Two-Seater Two-Seater
Interior Dimensions
Front Leg Room (in)
42.2 - TBD -
Passenger Capacity
2 2
Front Hip Room (in)
- TBD - - TBD -
Front Head Room (in)
39.1 - TBD -
Front Shoulder Room (in)
53.3 - TBD -
Passenger Volume (ft³)
- TBD - - TBD -
Exterior Dimensions
Wheelbase (in)
98.3 95.1
Liftover Height (in)
- TBD - - TBD -
Width, Max w/o mirrors (in)
70.5 70.9
Track Width, Front (in)
59.5 58.7
Min Ground Clearance (in)
- TBD - - TBD -
Length, Overall (in)
167.0 172.1
Height, Overall (in)
50.8 50.9
Track Width, Rear (in)
61.4 60.4
Cargo Area Dimensions
Trunk Volume (ft³)
10.9/6.4 19.9
Brakes
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
11.8 x 0.8 11.8 x - TBD -
Brake Type
Pwr-Assisted Pwr
Rear Drum Diam x Width (in)
NA NA
Disc - Front (Yes or )
Yes Yes
Front Brake Rotor Diam x Thickness (in)
13.0 x 0.9 12.5 x - TBD -
Drum - Rear (Yes or )
NA NA
Brake ABS System
4-Wheel 4-Wheel
Fuel Tank
Fuel Tank Capacity, Approx (gal)
14.5 16.9
Steering
Turning Diameter - Curb to Curb (ft)
35.1 - TBD -
Steering Type
Pwr Rack & Pinion Pwr Rack & Pinion
Lock to Lock Turns (Steering)
3.0 - TBD -
Turning Diameter - Wall to Wall (ft)
- TBD - - TBD -
Steering Ratio (:1), Overall
14.4 - TBD -
Tires
Spare Tire Size
NA NA
Front Tire Order Code
NA NA
Spare Tire Order Code
NA NA
Rear Tire Size
P225/45R17 P235/55ZR17
Rear Tire Order Code
NA NA
Front Tire Size
P225/45R17 P205/55ZR17
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Weight Information
Base Curb Weight (lbs)
3241 2943
Wheels
Rear Wheel Material
Alloy Aluminum
Rear Wheel Size (in)
17 x 8.0 17 x 8.5
Front Wheel Material
Alloy Aluminum
Spare Wheel Material
NA NA
Front Wheel Size (in)
17 x 8.0 17 x 7.0
Spare Wheel Size (in)
NA NA
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD -
Maximum Alternator Capacity (amps)
147 - TBD -
Engine
SAE Net Horsepower @ RPM
255 @ 6600 255 @ 6400
Engine Type
Gas I6 Gas Flat 6-cyl
Fuel System
Electronic Fuel Injection Direct Injection
SAE Net Torque @ RPM
220 @ 2600 214 @ 4400-6000
Engine Order Code
NA NA
Displacement
3.0L/183 2.9L/177
Mileage
EPA Fuel Economy Est - City (MPG)
18 19
Fuel Economy Est-Combined (MPG)
22 22
EPA Fuel Economy Est - Hwy (MPG)
28 27
Transmission
Drivetrain
Rear Wheel Drive Rear-Wheel Drive
Fifth Gear Ratio (:1)
0.81 0.97
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.19 3.33
Second Gear Ratio (:1)
2.01 2.05
Trans Order Code
NA NA
Final Drive Axle Ratio (:1)
4.27 3.87
Fourth Gear Ratio (:1)
1.00 1.13
Trans Description Cont.
Manual Manual
Sixth Gear Ratio (:1)
0.70 0.84
First Gear Ratio (:1)
3.50 3.66
Clutch Size (in)
- TBD - 9.45
Third Gear Ratio (:1)
1.31 1.40
Trans Type
6 6
Seventh Gear Ratio (:1)
- NA
Summary
Body Style
2 Dr Conv 2 Door Convertible
Vehicle Name
BMW Z4 Porsche Boxster
Suspension
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
Central Link MacPherson Strut
Suspension Type - Rear (Cont.)
NA NA
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
Strut-Type MacPherson Strut
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
w/Double-Pivot w/Coil Springs
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Emissions
EPA Greenhouse Gas Score
5 5
Tons/yr of CO2 Emissions @ 15K mi/year
8.5 8.5

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