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Compare 2009 Porsche Boxster vs 2011 BMW Z4

2009 Porsche Boxster Change
2011 BMW Z4 Change
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Selected Style 2-Door Roadster
Switch Style

Body Style

Trim

Style MPG City MPG Hwy Invoice MSRP
2-Door Roadster 19 27 $39,610 $46,600
2-Door Roadster S 19 26 $48,195 $56,700
2-Door Roadster sDrive30i
Switch Style

Body Style

Trim

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
Pricing
Invoice Price
$39,610
$43,655
Manufacturer Suggested Retail Price
$46,600
$47,450
Monthly Payment Estimate
$777 / month
$791 / month
Dealer Price Quotes
The Car Connection's Take
TCC Rating
9.2
/ 10
TCC Rating
How does the
TCC Rating work?
The TCC Rating is a clear numeric rating value based on a 10-point scale that reflects the overall opinion of our automotive experts on any vehicle and rolls up ratings we give each vehicle across sub-categories you care about like performance, safety, styling and more.

Our rating also has simple color-coded “Stop” (red), “Caution” (orange),
or “Go” (green) messages along with the numerical score so you can easily understand where we stand at a glance.

Our automotive experts then also collect and show you what other websites say about these different aspects of any vehicle. We do this leg work for you to simplify your research process.

Learn more about how we rate and review cars here.

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Read Our Full Review
7.8
/ 10
TCC Rating
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Read Our Full Review
TCC's Bottom Line The 2009 Porsche Boxster is exactly what you want it to be: a fast, snazzy modern roadster. 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.
TCC Likes
TCC Dislikes
Fuel Economy
Fuel Economy - City 19 mpg 18 mpg
Fuel Economy - Highway 27 mpg 28 mpg
Vehicle
EPA Classification Two-Seater Two-Seater
Interior Dimensions
Front Hip Room (in) 53.4 - TBD -
Passenger Volume (ft³) - TBD - - TBD -
Front Head Room (in) 38.4 39.1
Front Shoulder Room (in) 51.7 53.3
Passenger Capacity 2 2
Front Leg Room (in) 41.6 42.2
Exterior Dimensions
Track Width, Front (in) 58.7 59.5
Min Ground Clearance (in) - TBD - - TBD -
Length, Overall (in) 172.1 167.0
Height, Overall (in) 50.9 50.8
Track Width, Rear (in) 60.4 61.4
Wheelbase (in) 95.1 98.3
Liftover Height (in) - TBD - - TBD -
Width, Max w/o mirrors (in) 70.9 70.5
Cargo Area Dimensions
Trunk Volume (ft³) 9.9 10.9/6.4
Brakes
Rear Drum Diam x Width (in) NA NA
Disc - Front (Yes or ) Yes Yes
Front Brake Rotor Diam x Thickness (in) 12.52 x 0.94 13.0 x 0.9
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) 11.78 x 0.79 11.8 x 0.8
Brake Type Pwr Pwr-Assisted
Fuel Tank
Fuel Tank Capacity, Approx (gal) 16.9 14.5
Steering
Lock to Lock Turns (Steering) - TBD - 3.0
Turning Diameter - Wall to Wall (ft) - TBD - - TBD -
Steering Ratio (:1), Overall - TBD - 14.4
Turning Diameter - Curb to Curb (ft) - TBD - 35.1
Steering Type Pwr Rack & Pinion Pwr Rack & Pinion
Tires
Spare Tire Order Code NA NA
Rear Tire Size P235/50ZR17 P225/45R17
Rear Tire Order Code NA NA
Front Tire Size P205/55ZR17 P225/45R17
Spare Tire Size NA NA
Front Tire Order Code NA NA
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Tongue Wt. (lbs) - TBD - NA
Dead Weight Hitch - Max Trailer Wt. (lbs) - TBD - NA
Wt Distributing Hitch - Max Trailer Wt. (lbs) - TBD - NA
Weight Information
Base Curb Weight (lbs) 2943 3241
Wheels
Rear Wheel Size (in) 17 x 8.5 17 x 8.0
Front Wheel Material Aluminum Alloy
Spare Wheel Material NA NA
Front Wheel Size (in) 17 x 7.0 17 x 8.0
Spare Wheel Size (in) NA NA
Rear Wheel Material Aluminum Alloy
Cooling System
Total Cooling System Capacity (qts) - TBD - - TBD -
Electrical
Cold Cranking Amps @ 0° F (Primary) - TBD - - TBD -
Maximum Alternator Capacity (amps) - TBD - 147
Engine
SAE Net Torque @ RPM 214 @ 4600-6000 220 @ 2600
Engine Order Code NA NA
Displacement 2.9L/177 3.0L/183
SAE Net Horsepower @ RPM 255 @ 6500 255 @ 6600
Engine Type Gas Flat 6-cyl Gas I6
Fuel System SMFI Electronic Fuel Injection
Mileage
EPA Fuel Economy Est - Hwy (MPG) 27 28
EPA Fuel Economy Est - City (MPG) 19 18
Fuel Economy Est-Combined (MPG) 22 22
Transmission
Seventh Gear Ratio (:1) NA -
Clutch Size (in) 9.45 - TBD -
Third Gear Ratio (:1) 1.43 1.31
Trans Type 6 6
Drivetrain Rear-Wheel Drive Rear Wheel Drive
Fifth Gear Ratio (:1) 0.84 0.81
Trans Description Cont. Again NA NA
Reverse Ratio (:1) 3.44 3.19
Second Gear Ratio (:1) 2.12 2.01
Trans Order Code NA NA
Final Drive Axle Ratio (:1) 3.88 4.27
Fourth Gear Ratio (:1) 1.09 1.00
Trans Description Cont. Manual Manual
Sixth Gear Ratio (:1) - TBD - 0.70
First Gear Ratio (:1) 3.50 3.50
Summary
Vehicle Name Porsche Boxster BMW Z4
Body Style 2 Door Roadster 2 Dr Conv
Suspension
Shock Absorber Diameter - Rear (mm) - TBD - - TBD -
Suspension Type - Front Independent Strut-Type
Stabilizer Bar Diameter - Rear (in) - TBD - - TBD -
Suspension Type - Front (Cont.) MacPherson Strut w/Double-Pivot
Shock Absorber Diameter - Front (mm) - TBD - - TBD -
Stabilizer Bar Diameter - Front (in) - TBD - - TBD -
Suspension Type - Rear Independent Central Link
Suspension Type - Rear (Cont.) MacPherson Strut NA
Emissions
EPA Greenhouse Gas Score 6 5
Tons/yr of CO2 Emissions @ 15K mi/year - 8.5
 
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