Porsche Boxster Porsche Boxster 2007 BMW 3-Series BMW 3-Series 2006

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Porsche Boxster vs. BMW 3-Series 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 3-Series Invoice Comparison

Lowest Total Price: $58,450

Porsche Boxster   
Difference: $6,615

Lowest Total Invoice: $49,805

Porsche Boxster   
Difference: $9,740

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072006
ModelBoxster3-Series
TrimBaseM3
Body2dr Convertible2dr Convertible
Base Price $45,600 $56,600
Base Invoice $38,760 $51,685
Power Seat Package 1,550  
Auto-dimming rearview mirror 690  
Xenon HID headlights 1,090 700
Front sport buckets 760  
Automatic climate control, front 550  
Audio controls on steering wheel 990  
Navigation system 3,070 1,800
Obstacle detection, rear 530 350
Heated front seats 480  
Removable hard top 2,345 2,295
Cold Weather Package (convertible)   750
Rear spoiler   0
Metallic paint (extra cost)   475
Power 4-way lumbar adjuster, driver seat   400
Power Seat Package 1,318  
Auto-dimming rearview mirror 587  
Xenon HID headlights 927 635
Front sport buckets 646  
Automatic climate control, front 468  
Audio controls on steering wheel 842  
Navigation system 2,610 1,640
Obstacle detection, rear 451 320
Heated front seats 408  
Removable hard top 1,993 2,090
Cold Weather Package (convertible)   685
Rear spoiler   0
Metallic paint (extra cost)   430
Power 4-way lumbar adjuster, driver seat   365
Options (change) 12,055 6,770
Options (change) 10,250 6,165
Destination 795 695
Gas Tax 0 1,000
Total Price $58,450 $65,065
Total Invoice $49,805 $59,545

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

Dealer Price Quotes

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TrueDelta Value Comparison: Porsche Boxster vs. BMW 3-Series

Lowest Adjusted Price and Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $4,985
TrueDelta Adjusted Invoice Difference: $8,248
Model Year20072006
ModelBoxster3-Series
TrimBaseM3
Body2dr Convertible2dr Convertible
Engine245hp H6333hp I6
TransmissionM5M6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)20/29 MPG16/24 MPG
Audio (watts, speakers)50, 4?, 10
Tire (rear if not all the same)205/55-17225/45-18
Total Price$58,450$65,065
Adjustments for Features0-1,630
Feature-Adjusted Total Price$58,450$63,435
Total Invoice$49,805$59,545
Adjustments for Features0-1,492
Feature-Adjusted Total Invoice$49,805$58,053

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Features Comparison: Porsche Boxster vs. BMW 3-Series

Model Year20072006
ModelBoxster3-Series
TrimBaseM3
Body2dr Convertible2dr Convertible
Transmission and Drivetrain 
5-speed manual$0 
6-speed manual $150
RWD$0$0
Accessories 
Power rear side windows $200
Remote window/roof operation $15
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Universal garage door opener$100 
Brakes, Airbags, and Other Safety 
Auto-raising roll bars / headrests $500
Brake assist $50
Roll bar$200 
Cargo Management 
Cargo net$40 
Rear seat pass-through $100
Ski sack $50
Climate Control 
Water-repellent front-door glass$15 
Drivetrain 
Limited-slip rear differential $300
Engine / Motor 
Mid-engine configuration$0 
Exterior 
Body kit $0
Bodyside moldings $75
Rear spoiler $200
Retractable rear spoiler$400 
Infotainment 
Bluetooth cell phone link $100
MP3-compatible player $50
Telematics service, such as OnStar $200
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Auto-dimming passenger-side mirror$75 
Automatic headlights $125
Fog light, rear$100 
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
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 headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Suspension, Wheels, and Tires 
Alloy wheels$350 
Polished alloy wheels $350
Ultra-sport suspension (upgrade) $0
Total Value of Features$1,705$3,335
Value of Feature Adjustments$0$1,630
Value of Feature Adjustments0-1,492

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Specifications Comparison: Porsche Boxster vs. BMW 3-Series

Model Year20072006
ModelBoxster3-Series
Body2dr Convertible2dr Convertible
Wheelbase95.1 in107.3 in
Length170.4 in176.7 in
Width70.9 in69.2 in
Height51.0 in54.0 in
Curb Weight2,855 lb.3,778 lb.
Fuel Capacity17.0 gal.16.6 gal.
Row 1 Headroom38.4 in38.0 in
Row 1 Shoulder Room51.7 in54.5 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in41.7 in
Row 2 Headroom0.0 in36.4 in
Row 2 Shoulder Room0.0 in45.9 in
Row 2 Legroom0.0 in32.0 in
Cargo Volume9.9 ft37.7 ft3

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Option Package Details
Porsche Boxster

Power Seat Package
FeatureValueRequested?
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 Requested850100%
Total Not Requested00%

Option Package Details
BMW 3-Series M3

Power 4-way lumbar adjuster, driver seat
FeatureValueRequested?
Power 4-way lumbar adjuster, driver seat150Yes
Power 4-way lumbar adjuster, passenger seat150No
Total Requested15050%
Total Not Requested15050%
Cold Weather Package (convertible)
FeatureValueRequested?
Heated front seats200Yes
Headlight washers50Yes
Ski sack50No
Total Requested25083%
Total Not Requested5017%

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