Porsche Boxster Porsche Boxster 2007 BMW Z4 BMW Z4 2009

We are 103,000+ car owners sharing real-world car information.

Join Us

Porsche Boxster vs. BMW Z4 Price Comparison (MSRP)

The sticker prices, before adjusting for remaining feature differences. Usually these are the numbers you will see on the window stickers.

Models in short supply often sell at or even above these prices.

Porsche Boxster vs. BMW Z4 Invoice Comparison

Lowest Total Price: $59,875

Porsche Boxster   
Difference: $2,825

Lowest Total Invoice: $51,017

Porsche Boxster   
Difference: $6,638

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072009
ModelBoxsterZ4
TrimBasesDrive35i
Body2dr Convertible2dr Hardtop conv.
Base Price $45,600 $51,650
Base Invoice $38,760 $47,520
Sport Chrono Package 920  
Adaptive dampers - electrical 1,990  
Auto-dimming rearview mirror 690  
Adaptive Sports Seats 3,055  
Automatic climate control, front 550  
Audio controls on steering wheel 990  
Navigation system 3,070 2,100
Xenon HID headlights 1,090  
Floor mats 115  
Heated front seats 480 500
Obstacle detection, rear 530 750
Premium Package   2,500
Sport Package   2,300
7-speed automated manual   1,525
Metallic paint (extra cost)   550
Sport Chrono Package 782  
Adaptive dampers - electrical 1,692  
Auto-dimming rearview mirror 587  
Adaptive Sports Seats 2,597  
Automatic climate control, front 468  
Audio controls on steering wheel 842  
Navigation system 2,610 1,910
Xenon HID headlights 927  
Floor mats 98  
Heated front seats 408 455
Obstacle detection, rear 451 685
Premium Package   2,275
Sport Package   2,095
7-speed automated manual   1,390
Metallic paint (extra cost)   500
Options (change) 13,480 10,225
Options (change) 11,462 9,310
Destination 795 825
Total Price $59,875 $62,700
Total Invoice $51,017 $57,655

Return to top

While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Porsche Boxster dealer quotes or BMW Z4 dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Porsche Boxster vs. BMW Z4

Lowest Adjusted Price: BMW Z4 sDrive35i
Lowest Adjusted Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $2,105
TrueDelta Adjusted Invoice Difference: $2,105
Model Year20072009
ModelBoxsterZ4
TrimBasesDrive35i
Body2dr Convertible2dr Hardtop conv.
Engine245hp H6300hp I6
TransmissionM5S7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)20/29 MPG0/0 MPG
Audio (watts, speakers)50, 4?, 10
Tire (rear if not all the same)205/55-17225/40-18
Total Price$59,875$62,700
Adjustments for Features0-4,930
Feature-Adjusted Total Price$59,875$57,770
Total Invoice$51,017$57,655
Adjustments for Features0-4,533
Feature-Adjusted Total Invoice$51,017$53,122

Return to top

Features Comparison: Porsche Boxster vs. BMW Z4

Model Year20072009
ModelBoxsterZ4
TrimBasesDrive35i
Body2dr Convertible2dr Hardtop conv.
Transmission and Drivetrain 
5-speed manual$0 
7-speed automated manual $1200
RWD$0$0
Brakes, Airbags, and Other Safety 
Brake assist $50
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, front $150
Tires, run-flat $150
Cargo Management 
Cargo net$40 
Climate Control 
Dual-zone climate control $125
Water-repellent front-door glass$15 
Engine / Motor 
Mid-engine configuration$0 
Raised top speed limiter $0
Exterior 
Power convertible top$4000 
Power retractable hardtop $6750
Retractable rear spoiler$400 
Infotainment 
Aux input $50
Bluetooth cell phone link $100
HD radio $50
Media drive $15
MP3-compatible player $50
Telematics service, such as OnStar $200
Traffic information $25
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Automatic headlights $125
Chronometer$100 
Fog light, rear$100 
Headlight washers$50 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Power-folding mirrors $50
Steering-linked headlights $150
Trip computer$150 
Turn signals on or near mirrors $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Aluminum trim $100
Manual thigh support length adjuster, driver seat $50
Manual thigh support length adjuster, passenger seat $50
Power 4-way lumbar adjuster, passenger seat $150
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Suspension, Wheels, and Tires 
Sport suspension (upgrade) $0
Transmission 
Launch control $100
Steering-wheel-mounted transmission controls $100
Total Value of Features$5,155$10,085
Value of Feature Adjustments$0$4,930
Value of Feature Adjustments0-4,533

Return to top

Specifications Comparison: Porsche Boxster vs. BMW Z4

Model Year20072009
ModelBoxsterZ4
Body2dr Convertible2dr Hardtop conv.
Wheelbase95.1 in98.3 in
Length170.4 in166.9 in
Width70.9 in70.5 in
Height51.0 in50.8 in
Curb Weight2,855 lb.3,494 lb.
Fuel Capacity17.0 gal.14.5 gal.
Row 1 Headroom38.4 in39.1 in
Row 1 Shoulder Room51.7 in53.3 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in42.2 in
Cargo Volume9.9 ft310.9 ft3

Return to top

Option Package Details
Porsche Boxster

Sport Chrono Package
FeatureValueRequested?
Chronometer100No
Electronic systems calibration selector200Yes
Total Requested20067%
Total Not Requested10033%
Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested115085%
Total Not Requested20015%

Option Package Details
BMW Z4 sDrive35i

7-speed automated manual
FeatureValueRequested?
7-speed automated manual0Yes
Steering-wheel-mounted transmission controls100No
Launch control100No
Total Requested00%
Total Not Requested200100%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100No
Traffic information25No
HD radio50No
Media drive, large15No
SD Card slot25No
Total Requested60074%
Total Not Requested21526%
Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%
Premium Package
FeatureValueRequested?
Power 4-way lumbar adjuster, driver seat150Yes
Power 4-way lumbar adjuster, passenger seat150No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Telematics service, such as OnStar200No
Bluetooth cell phone link100No
Auto-dimming driver-side mirror75Yes
Power-folding mirrors50No
Auto-dimming passenger-side mirror75Yes
Interior ambient lighting150No
Power tilt adjuster, driver seat100Yes
Power recliner, driver seat100Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Total Requested145069%
Total Not Requested65031%
Sport Package
FeatureValueRequested?
Sport suspension (upgrade)250No
Adaptive shocks - electrical500Yes
Manual thigh support adjuster, driver seat50No
Power seatback bolsters, driver100Yes
Manual thigh support adjuster, passenger seat50No
Power seatback bolsters, passenger seat100Yes
Front sport buckets100Yes
225/40WR18 tires200No
255/35WR18 tires200No
Raised top speed limiter0No
Total Requested80052%
Total Not Requested75048%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Porsche models.