Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2008 Porsche Boxster Porsche Boxster 2011

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

Lowest Total Price: $63,635

Porsche Boxster   
Difference: $21,140

Calculate Payments

  Down Payment Interest Rate Term
Model Year2008201120112011
ModelA4 / S4 / RS4BoxsterBoxsterBoxster
TrimRS4 CabrioletBaseSS Black Edition
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Base Price $81,900 $48,100 $58,600 $65,200
iPod integration 0      
Navigation system   3,430    
Unbranded 185W 7 speakers   0    
Convenience Package   2,490 2,490  
Adaptive Sports Seats   3,055 3,055 3,055
Adaptive dampers - electrical   2,090 2,090 2,090
Carbon fiber trim   1,140 1,140  
Audio controls on steering wheel   615 615 125
Obstacle detection, rear   530 530 530
Heated front seats   525 525 525
Metallic paint (extra cost)   710 710  
Infotainment Package     3,640  
iPod integration 0      
Navigation system   0    
Unbranded 185W 7 speakers   0    
Convenience Package   0 0  
Adaptive Sports Seats   0 0 0
Adaptive dampers - electrical   0 0 0
Carbon fiber trim   0 0  
Audio controls on steering wheel   0 0 0
Obstacle detection, rear   451 451 451
Heated front seats   0 0 0
Metallic paint (extra cost)   0 0  
Infotainment Package     0  
Options (change) 0 14,585 14,795 6,325
Options (change) 0 451 451 451
Destination 775 950 950 950
Gas Tax 2,100 0 0 0
Total Price $84,775 $63,635 $74,345 $72,475

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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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Request free, no-obligation Audi A4 / S4 / RS4 dealer quotes or Porsche Boxster dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Audi A4 / S4 / RS4 vs. Porsche Boxster

Lowest Adjusted Price: Porsche Boxster
Lowest Adjusted Invoice: Porsche Boxster S
TrueDelta Adjusted Price Difference: $17,285
TrueDelta Adjusted Invoice Difference: $74,053
Model Year2008201120112011
ModelA4 / S4 / RS4BoxsterBoxsterBoxster
TrimRS4 CabrioletBaseSS Black Edition
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Engine420hp V8255hp H6310hp H6320hp H6
TransmissionM6M6M6M6
DrivetrainAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)215, 9185, 7325, 11325, 11
Tire (rear if not all the same)255/35-19205/55-17235/40-18235/35-19
Total Price$84,775$63,635$74,345$72,475
Adjustments for Features-3,8550-250-50
Feature-Adjusted Total Price$80,920$63,635$74,095$72,425
Cost Above Minimum$0$0$10,460$8,790

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

Model Year2008201120112011
ModelA4 / S4 / RS4BoxsterBoxsterBoxster
TrimRS4 CabrioletBaseSS Black Edition
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Transmission and Drivetrain 
6-speed manual$150$150$150$150
AWD$1700   
RWD $0$0$0
Accessories 
Power rear side windows$200   
Wind blocker$300   
Wind blocker, small $100$100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0   
Auto-raising roll bars / headrests$500   
Full-size spare tire$225   
Knee airbag, driver$75   
Knee airbag, passenger$75   
Roll bar $200$200$200
Cargo Management 
Cargo net $40$40$40
Rear seat pass-through$100   
Ski sack$50   
Storage compartment under front seat(s)$50   
Climate Control 
Automatic air recirculation$100   
Dual-zone climate control$125   
Water-repellent front-door glass $15$15$15
Engine / Motor 
Mid-engine configuration $0$0$0
Exterior 
Body kit$0   
Bodyside moldings$75   
Rear spoiler$200   
Retractable rear spoiler $400$400$400
Sunroof$900   
Infotainment 
Aux input $50$50$50
CD player $125$125$125
DVD-Audio-compatible player $0$0$0
iPod integration$100   
Media drive $15$15$15
Off-road navigation system $0$0$0
Surround sound  $250$250
Traffic information $25$25$25
USB port $25$25$25
Instruments, Lights, and Mirrors 
Automatic headlights$125   
Compass$0   
Cornering lights $50$50$50
Power-folding mirrors$50   
Turn signals on or near mirrors$25   
Seats and Interior Trim 
Carbon fiber trim$200$200$200 
Center armrest(s), second row$50   
Heated second row seats$200   
Manual height adjuster, driver seat$50   
Manual thigh support length adjuster, driver seat$50   
Metal pedals $75$75$75
No leather in second row $-300$-300$-300
Power 4-way lumbar adjuster, passenger seat$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$100
Power seatback bolsters, passenger seat $100$100$100
Power thigh bolsters, driver seat $100$100$100
Power thigh bolsters, passenger seat $100$100$100
Power tilt adjuster, driver seat $100$100$100
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500$500$500
Hydraulically cross-linked dampers$500   
Ultra-sport suspension (upgrade)$0   
Total Value of Features$6,325$2,470$2,720$2,520
Value of Feature Adjustments$3,855$0$250$50
Value of Feature Adjustments-3,5940-5-1

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

Model Year20082011
ModelA4 / S4 / RS4Boxster
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

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Option Package Details
Porsche Boxster

Navigation system
FeatureValueRequested?
Navigation system600Yes
DVD-Audio-compatible player0No
Off-road navigation system0No
Media drive, large15No
USB port25Yes
Satellite radio200Yes
Traffic information25No
Total Requested82595%
Total Not Requested405%
Convenience Package
FeatureValueRequested?
Wind blocker, small100Yes
Automatic climate control, front200Yes
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested140097%
Total Not Requested503%
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
Porsche Boxster S

Infotainment Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
DVD-Audio-compatible player0No
Surround sound250No
Traffic information25No
Off-road navigation system0No
Media drive, large15No
Bose, 325W, 11 speakers (with subwoofer)350No
USB port25Yes
Total Requested82556%
Total Not Requested64044%
Convenience Package
FeatureValueRequested?
Wind blocker, small100Yes
Automatic climate control, front200Yes
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Auto-dimming driver-side mirror75Yes
Auto-dimming passenger-side mirror75Yes
Total Requested140097%
Total Not Requested503%
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
Porsche Boxster S Black Edition

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%

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