Compare 2011 BMW Z4 vs 2010 Porsche Boxster

2011 BMW Z4
2010 Porsche Boxster
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2-Door Roadster sDrive30i
Style MPG City MPG Hwy Invoice MSRP
Z4 2-Door Roadster sDrive30i 18 28 $43,655 $47,450
Z4 2-Door Roadster sDrive35i 19 26 $49,080 $53,350
Z4 2-Door Roadster sDrive35is 17 24 $57,500 $62,500
Select style
2-Door Roadster
Style MPG City MPG Hwy Invoice MSRP
Boxster 2-Door Roadster 19 27 $42,660 $47,600
Boxster 2-Door Roadster S 19 26 $52,020 $58,000

Pricing

Invoice Price

$43,655
$42,660

Manufacturer Suggested Retail Price

$47,450
$47,600

Monthly Payment Estimate

$791 / month
$793 / 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 2010 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 Shoulder Room (in)

53.3 - TBD -

Passenger Volume (ft³)

- TBD - - TBD -

Front Leg Room (in)

42.2 33.5

Passenger Capacity

2 2

Front Hip Room (in)

- TBD - 53.4

Front Head Room (in)

39.1 37.6

Exterior Dimensions

Height, Overall (in)

50.8 50.9

Track Width, Rear (in)

61.4 60.4

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 - 5.0

Length, Overall (in)

167.0 172.1

Cargo Area Dimensions

Trunk Volume (ft³)

10.9/6.4 9.9

Brakes

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 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 -

Fuel Tank

Fuel Tank Capacity, Approx (gal)

14.5 16.9

Steering

Steering Ratio (:1), Overall

14.4 - TBD -

Turning Diameter - Curb to Curb (ft)

35.1 36.4

Steering Type

Pwr Rack & Pinion Pwr Rack & Pinion

Lock to Lock Turns (Steering)

3.0 - TBD -

Turning Diameter - Wall to Wall (ft)

- TBD - - TBD -

Tires

Rear Tire Order Code

NA NA

Front Tire Size

P225/45R17 P205/55ZR17

Spare Tire Size

NA NA

Front Tire Order Code

NA NA

Spare Tire Order Code

NA NA

Rear Tire Size

P225/45R17 P235/50ZR17

Trailering

Dead Weight Hitch - Max Tongue Wt. (lbs)

NA NA

Wt Distributing Hitch - Max Tongue Wt. (lbs)

NA NA

Dead Weight Hitch - Max Trailer Wt. (lbs)

NA NA

Wt Distributing Hitch - Max Trailer Wt. (lbs)

NA NA

Weight Information

Base Curb Weight (lbs)

3241 2943

Wheels

Front Wheel Size (in)

17 x 8.0 17 x 7.0

Spare Wheel Size (in)

NA NA

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

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 Torque @ RPM

220 @ 2600 214 @ 4400-6000

Engine Order Code

NA NA

Displacement

3.0L/183 2.9L/177

SAE Net Horsepower @ RPM

255 @ 6600 255 @ 6400

Engine Type

Gas I6 Gas Flat 6-cyl

Fuel System

Electronic Fuel Injection Electronic Fuel Injection

Mileage

EPA Fuel Economy Est - Hwy (MPG)

28 27

EPA Fuel Economy Est - City (MPG)

18 19

Fuel Economy Est-Combined (MPG)

22 22

Transmission

Clutch Size (in)

- TBD - - TBD -

Third Gear Ratio (:1)

1.31 1.40

Trans Type

6 6

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

Seventh Gear Ratio (:1)

- NA

Summary

Vehicle Name

BMW Z4 Porsche Boxster

Body Style

2 Dr Conv 2 Door Roadster

Suspension

Shock Absorber Diameter - Front (mm)

- TBD - - TBD -

Stabilizer Bar Diameter - Front (in)

- TBD - - TBD -

Suspension Type - Rear

Central Link MacPherson Strut

Suspension Type - Rear (Cont.)

NA w/Coil Springs

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

Emissions

EPA Greenhouse Gas Score

5 6

Tons/yr of CO2 Emissions @ 15K mi/year

8.5 8.5

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