Audi A4 / S4 Audi A4 / S4 2009 Porsche Boxster Porsche Boxster 2010

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

Join Us

Audi A4 / S4 vs. Porsche Boxster 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.

Audi A4 / S4 vs. Porsche Boxster Invoice Comparison

Lowest Total Price: $56,050

Audi A4 / S4 A4 3.2 Cabriolet   
Difference: $7,005

Calculate Payments

  Down Payment Interest Rate Term
Model Year2009200920102010
ModelA4 / S4A4 / S4BoxsterBoxster
TrimA4 3.2 CabrioletS4 CabrioletBaseS
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Base Price $48,800 $57,125 $47,600 $58,000
Upgraded leather upholstery 1,000      
Convenience Package 1,550 2,275    
Metallic paint (extra cost) 475 475 710 710
Heated front seats 450   510 510
Obstacle detection, rear 350 350 530 530
Front sport buckets 500      
Navigation system 2,100 1,950 3,110 3,110
Wood trim   400 890 890
Adaptive Sports Seats     3,055 3,055
Auto-dimming rearview mirror     690 690
Xenon HID headlights     1,560 1,560
Floor mats     90 90
Automatic climate control, front     550 550
Bluetooth cell phone link     695 695
Satellite radio     750 750
Audio controls on steering wheel     990 990
Wind blocker, small     375 375
Upgraded leather upholstery 930      
Convenience Package 1,442 2,115    
Metallic paint (extra cost) 443 443 0 0
Heated front seats 418   0 0
Obstacle detection, rear 325 325 451 451
Front sport buckets 466      
Navigation system 1,953 1,813 0 0
Wood trim   373 757 757
Adaptive Sports Seats     2,597 2,597
Auto-dimming rearview mirror     587 587
Xenon HID headlights     0 0
Floor mats     0 0
Automatic climate control, front     468 468
Bluetooth cell phone link     0 0
Satellite radio     0 0
Audio controls on steering wheel     842 842
Wind blocker, small     319 319
Options (change) 6,425 5,450 14,505 14,505
Options (change) 5,977 5,069 6,021 6,021
Destination 825 825 950 950
Gas Tax 0 1,700 0 0
Total Price $56,050 $65,100 $63,055 $73,455

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 Audi A4 / S4 dealer quotes or Porsche Boxster 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: Audi A4 / S4 vs. Porsche Boxster

Lowest Adjusted Price: Audi A4 / S4 A4 3.2 Cabriolet
Lowest Adjusted Invoice: Porsche Boxster
TrueDelta Adjusted Price Difference: $11,225
TrueDelta Adjusted Invoice Difference: $41,287
Model Year2009200920102010
ModelA4 / S4A4 / S4BoxsterBoxster
TrimA4 3.2 CabrioletS4 CabrioletBaseS
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Engine255hp V6340hp V8255hp H6310hp H6
TransmissionT6M6M6M6
DrivetrainAWDAWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)180, 9215, 950, 4185, 7
Tire (rear if not all the same)235/40-18235/40-18205/55-17235/40-18
Total Price$56,050$65,100$63,055$73,455
Adjustments for Features-4,220-2,87000
Feature-Adjusted Total Price$51,830$62,230$63,055$73,455
Cost Above Minimum$0$10,400$0$10,400

Return to top

Features Comparison: Audi A4 / S4 vs. Porsche Boxster

Model Year2009200920102010
ModelA4 / S4A4 / S4BoxsterBoxster
TrimA4 3.2 CabrioletS4 CabrioletBaseS
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100   
6-speed manual $150$150$150
AWD$1700$1700  
RWD  $0$0
Accessories 
Power rear side windows$200$200  
Wind blocker$300$300  
Wind blocker, small  $100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0  
Auto-raising roll bars / headrests$500$500  
Full-size spare tire$225$225  
Knee airbag, driver$75$75  
Knee airbag, passenger$75$75  
Roll bar  $200$200
Cargo Management 
Cargo net  $40$40
Rear seat pass-through$100$100  
Ski sack$50$50  
Storage compartment under front seat(s)$50$50  
Climate Control 
Automatic air recirculation$100$100  
Dual-zone climate control$125$125  
Water-repellent front-door glass  $15$15
Engine / Motor 
Mid-engine configuration  $0$0
Exterior 
Bodyside moldings$75$75  
Retractable rear spoiler  $400$400
Infotainment 
Bluetooth cell phone link$100 $100$100
CD changer, remote$200$200  
DVD-Audio-compatible player  $0$0
MP3-compatible player$50$50  
Off-road navigation system  $0$0
SD Card slot$25$25  
Instruments, Lights, and Mirrors 
Automatic headlights$125$125  
Compass$0$0  
Turn signals on or near mirrors$25$25  
Seats and Interior Trim 
Center armrest(s), second row$50$50  
Manual height adjuster, driver seat $50  
Manual thigh support length adjuster, driver seat $50  
Metal pedals  $75$75
No leather in second row  $-300$-300
Power 4-way lumbar adjuster, passenger seat$150$150  
Power fore-aft adjuster, driver seat$100 $100$100
Power height adjuster, driver seat$100 $100$100
Power recliner, driver seat$100 $100$100
Power seatback bolsters, driver seat  $100$100
Power seatback bolsters, passenger seat  $100$100
Power thigh bolsters, driver seat  $100$100
Power thigh bolsters, passenger seat  $100$100
Power tilt adjuster, driver seat$100 $100$100
Suspension, Wheels, and Tires 
Ultra-sport suspension (upgrade) $0  
Total Value of Features$5,800$4,450$1,580$1,580
Value of Feature Adjustments$4,220$2,870$0$0
Value of Feature Adjustments-3,929-2,67700

Return to top

Specifications Comparison: Audi A4 / S4 vs. Porsche Boxster

Model Year20092010
ModelA4 / S4Boxster
Body2dr Convertible2dr Convertible
Wheelbase104.3 in95.1 in
Length180.0 in172.1 in
Width70.0 in70.9 in
Height54.8 in50.9 in
Curb Weight3,859 lb.2,944 lb.
Fuel Capacity16.6 gal.16.9 gal.
Row 1 Headroom38.0 in38.4 in
Row 1 Shoulder Room53.0 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom41.3 in41.6 in
Row 2 Headroom36.3 in0.0 in
Row 2 Shoulder Room45.1 in0.0 in
Row 2 Legroom32.4 in0.0 in
Cargo Volume8.9 ft39.9 ft3

Return to top

Option Package Details
Audi A4 / S4 A4 3.2 Cabriolet

Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125No
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75Yes
Total Requested135092%
Total Not Requested1258%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Convenience Package
FeatureValueRequested?
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125No
Steering-linked headlights150Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75Yes
Total Requested85064%
Total Not Requested47536%

Option Package Details
Porsche Boxster

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested400100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested700100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
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 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 Requested95070%
Total Not Requested40030%

Option Package Details
Porsche Boxster S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested400100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Steering-linked headlights150Yes
Headlight washers50Yes
Total Requested700100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
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 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 Requested95070%
Total Not Requested40030%

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 Sedans, Wagons, and Convertibles.
See TrueDelta's information for all Audi models.