Compare 2009 BMW Z4 vs 2008 Porsche Boxster

2009 BMW Z4
2008 Porsche Boxster
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2-Door Roadster sDrive30i
Style MPG City MPG Hwy Invoice MSRP
Z4 2-Door Roadster sDrive30i 19 28 $42,090 $45,750
Z4 2-Door Roadster sDrive35i 18 25 $47,520 $51,650
Select style
2-Door Roadster
Style MPG City MPG Hwy Invoice MSRP
Boxster 2-Door Roadster 20 29 $39,923 $45,800
Boxster 2-Door Roadster Limited Edition 20 29 $43,512 $49,900
Boxster 2-Door Roadster RS 60 Spyder 19 27 $55,970 $64,900
Boxster 2-Door Roadster S 19 27 $48,590 $55,700
Boxster 2-Door Roadster S Design Edition 2 19 27 $59,700 $68,700
Boxster 2-Door Roadster S Limited Edition 19 27 $52,267 $59,900
Pricing
Invoice Price
$42,090
$39,923
Manufacturer Suggested Retail Price
$45,750
$45,800
Monthly Payment Estimate
$763 / month
$763 / month
The Car Connection's Take
TCC Rating
8.2
9.2
TCC’s Bottom Line
The 2009 BMW Z4 isn't a lightweight, basic roadster anymore, but it's a comfortable and exhilarating touring sports car that leaves a lot of flexibility. The 2008 Porsche Boxster performs brilliantly, and looks and feels the part, delivering a modern take on the classic roadster experience.
TCC Likes
TCC Dislikes
Fuel Economy
City
19 mpg 20 mpg
Highway
28 mpg 29 mpg
Vehicle
EPA Classification
Two-Seater Two-Seater
Interior Dimensions
Front Leg Room (in)
42.2 - TBD -
Front Hip Room (in)
- TBD - - TBD -
Passenger Volume (ft³)
- TBD - - TBD -
Front Head Room (in)
39.1 - TBD -
Front Shoulder Room (in)
53.3 - TBD -
Passenger Capacity
2 2
Exterior Dimensions
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 - - TBD -
Length, Overall (in)
166.9 171.6
Height, Overall (in)
50.8 50.9
Cargo Area Dimensions
Trunk Volume (ft³)
8.0 9.5
Brakes
Disc - Rear (Yes or )
Yes Yes
Rear Brake Rotor Diam x Thickness (in)
11.8 x - TBD - 11.78 x 0.79
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)
11.8 x - TBD - 11.73 x 0.94
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
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
Rear Tire Order Code
NA NA
Trailering
Dead Weight Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Trailer Wt. (lbs)
NA - TBD -
Dead Weight Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Wt Distributing Hitch - Max Tongue Wt. (lbs)
NA - TBD -
Weight Information
Base Curb Weight (lbs)
3241 2877
Wheels
Rear Wheel Material
Alloy Aluminum
Rear Wheel Size (in)
17 x 8.0 17 x 8.0
Front Wheel Material
Alloy Aluminum
Spare Wheel Material
NA NA
Front Wheel Size (in)
17 x 8.0 17 x 6.5
Spare Wheel Size (in)
NA NA
Cooling System
Total Cooling System Capacity (qts)
- TBD - - TBD -
Electrical
Maximum Alternator Capacity (amps)
147 - TBD -
Cold Cranking Amps @ 0° F (Primary)
- TBD - - TBD -
Engine
Engine Type
Gas I6 Gas Flat 6-cyl
Fuel System
- TBD - SMFI
SAE Net Torque @ RPM
220 @ 2600 201 @ 4600-6000
Engine Order Code
NA NA
Displacement
3.0L/182.8 2.7L/164
SAE Net Horsepower @ RPM
255 @ 6600 245 @ 6500
Mileage
Fuel Economy Est-Combined (MPG)
22 -
EPA Fuel Economy Est - Hwy (MPG)
28 29
EPA Fuel Economy Est - City (MPG)
19 20
Transmission
Final Drive Axle Ratio (:1)
4.27 3.75
Fourth Gear Ratio (:1)
1.00 1.09
Trans Description Cont.
Manual Manual
Sixth Gear Ratio (:1)
0.70 NA
First Gear Ratio (:1)
3.50 3.50
Clutch Size (in)
- TBD - 9.45
Third Gear Ratio (:1)
1.31 1.43
Trans Type
6 5
Drivetrain
Rear Wheel Drive Rear-Wheel Drive
Fifth Gear Ratio (:1)
0.81 0.84
Trans Description Cont. Again
NA NA
Reverse Ratio (:1)
3.19 3.44
Second Gear Ratio (:1)
2.01 2.12
Trans Order Code
NA NA
Summary
Body Style
2 Dr Conv 2 Door Roadster
Vehicle Name
BMW Z4 Porsche Boxster
Suspension
Stabilizer Bar Diameter - Front (in)
- TBD - - TBD -
Suspension Type - Rear
- TBD - Independent
Suspension Type - Rear (Cont.)
NA MacPherson Strut
Shock Absorber Diameter - Rear (mm)
- TBD - - TBD -
Suspension Type - Front
- TBD - Independent
Stabilizer Bar Diameter - Rear (in)
- TBD - - TBD -
Suspension Type - Front (Cont.)
NA MacPherson Strut
Shock Absorber Diameter - Front (mm)
- TBD - - TBD -
Emissions
EPA Greenhouse Gas Score
5 -

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