Porsche Boxster Porsche Boxster 2008 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2007

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

Join Us

Porsche Boxster vs. Audi A4 / S4 / RS4 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. Audi A4 / S4 / RS4 Invoice Comparison

Lowest Total Price: $63,045

Audi A4 / S4 / RS4 S4 Cabriolet   
Difference: $10,310

Lowest Total Invoice: $58,127

Audi A4 / S4 / RS4 S4 Cabriolet   
Difference: $526

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082007
ModelBoxsterA4 / S4 / RS4
TrimSS4 Cabriolet
Body2dr Convertible2dr Convertible
Base Price $55,700 $55,700
Base Invoice $43,512 $51,221
Xenon HID headlights 1,090  
Adaptive Sports Seats 3,055  
Auto-dimming rearview mirror 690  
Metallic paint (extra cost) 690 475
Automatic climate control, front 550  
Carbon fiber / leather-wrapped steering wheel 1,360  
Floor mats 115  
Heated front seats 480 450
Navigation system 3,110 1,950
Obstacle detection, rear 530 350
Wood trim 890 400
Wind blocker, small 375  
5-speed shiftable automatic 3,210  
CD changer, remote 650  
Convenience Package   1,050
Tire-pressure monitor   250
Xenon HID headlights 927  
Adaptive Sports Seats 2,597  
Auto-dimming rearview mirror 587  
Metallic paint (extra cost) 587 432
Automatic climate control, front 468  
Carbon fiber / leather-wrapped steering wheel 1,156  
Floor mats 98  
Heated front seats 408 410
Navigation system 2,644 1,775
Obstacle detection, rear 451 319
Wood trim 757 364
Wind blocker, small 319  
5-speed shiftable automatic 2,729  
CD changer, remote 553  
Convenience Package   958
Tire-pressure monitor   228
Options (change) 16,795 4,925
Options (change) 14,281 4,486
Destination 860 720
Gas Tax 0 1,700
Total Price $73,355 $63,045
Total Invoice $58,653 $58,127

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 Audi A4 / S4 / RS4 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. Audi A4 / S4 / RS4

Lowest Adjusted Price and Invoice: Audi A4 / S4 / RS4 S4 Cabriolet
TrueDelta Adjusted Price Difference: $11,780
TrueDelta Adjusted Invoice Difference: $1,881
Model Year20082007
ModelBoxsterA4 / S4 / RS4
TrimSS4 Cabriolet
Body2dr Convertible2dr Convertible
Engine295hp H6340hp V8
TransmissionT5M6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)18/25 MPG14/21 MPG
Audio (watts, speakers)230, 7180, 9
Tire (rear if not all the same)235/40-18235/40-18
Total Price$73,355$63,045
Adjustments for Features0-1,470
Feature-Adjusted Total Price$73,355$61,575
Total Invoice$58,653$58,127
Adjustments for Features0-1,355
Feature-Adjusted Total Invoice$58,653$56,772

Return to top

Features Comparison: Porsche Boxster vs. Audi A4 / S4 / RS4

Model Year20082007
ModelBoxsterA4 / S4 / RS4
TrimSS4 Cabriolet
Body2dr Convertible2dr Convertible
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000 
6-speed manual $150
RWD$0 
AWD $1700
Accessories 
Power rear side windows $200
Wind blocker $300
Wind blocker, small$100 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Auto-raising roll bars / headrests $500
Brake assist $50
Knee airbag, driver $75
Knee airbag, passenger $75
Roll bar$200 
Cargo Management 
Cargo net$40 
Rear seat pass-through $100
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Dual-zone climate control $125
Water-repellent front-door glass$15 
Engine / Motor 
Mid-engine configuration$0 
Exterior 
Bodyside moldings $75
Retractable rear spoiler$400 
Infotainment 
CD player$125 
MP3-compatible player $50
Instruments, Lights, and Mirrors 
Automatic headlights $125
Compass $0
Power-folding mirrors $50
Steering-linked headlights $150
Turn signals on or near mirrors $25
Seats and Interior Trim 
Carbon fiber / leather-wrapped steering wheel$150 
Center armrest(s), second row $50
Leather-wrapped steering wheel $150
Manual height adjuster, driver seat $50
Manual thigh support length adjuster, driver seat $50
Power 4-way lumbar adjuster, passenger seat $150
Power fore-aft adjuster, driver seat$100 
Power height adjuster, driver seat$100 
Power recliner, driver seat$100 
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power thigh bolsters, driver seat$100 
Power thigh bolsters, passenger seat$100 
Power tilt adjuster, driver seat$100 
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade) $0
Total Value of Features$2,830$4,300
Value of Feature Adjustments$0$1,470
Value of Feature Adjustments0-1,355

Return to top

Specifications Comparison: Porsche Boxster vs. Audi A4 / S4 / RS4

Model Year20082007
ModelBoxsterA4 / S4 / RS4
Body2dr Convertible2dr Convertible
Wheelbase95.1 in104.3 in
Length170.4 in180.0 in
Width70.9 in70.0 in
Height51.0 in54.8 in
Curb Weight3,053 lb.4,266 lb.
Fuel Capacity17.0 gal.16.6 gal.
Row 1 Headroom38.4 in38.0 in
Row 1 Shoulder Room51.7 in53.0 in
Row 1 Hip Room53.4 in0.0 in
Row 1 Legroom41.6 in41.3 in
Row 2 Headroom0.0 in36.3 in
Row 2 Shoulder Room0.0 in45.1 in
Row 2 Legroom0.0 in32.4 in
Cargo Volume9.9 ft38.9 ft3

Return to top

Option Package Details
Porsche Boxster S

Adaptive Sports Seats
FeatureValueRequested?
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Front sport buckets100Yes
Power fore-aft adjuster, driver seat100No
Power height adjuster, driver seat50No
Power tilt adjuster, driver seat100No
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 Requested70052%
Total Not Requested65048%

Option Package Details
Audi A4 / S4 / RS4 S4 Cabriolet

Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote-125Yes
Total Requested475100%
Total Not Requested00%
Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125No
Steering-linked headlights150No
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75Yes
Total Requested70068%
Total Not Requested32532%

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.