Porsche 911 Porsche 911 2010 Audi A4 / S4 / RS4 Audi A4 / S4 / RS4 2008

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

Join Us

Porsche 911 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 911 vs. Audi A4 / S4 / RS4 Invoice Comparison

Lowest Total Price: $55,850

Audi A4 / S4 / RS4 A4 3.2 Cabriolet   
Difference: $47,445

Calculate Payments

  Down Payment Interest Rate Term
Model Year20102010201020082008
Model911911911A4 / S4 / RS4A4 / S4 / RS4
TrimCarreraCarrera STurboA4 3.2 CabrioletRS4 Cabriolet
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Base Price $88,800 $99,800 $143,800 $47,900 $81,900
Adaptive Sports Seats 3,055 3,055      
Auto-dimming rearview mirror 420 420      
Metallic paint (extra cost) 710 710   475  
Audio controls on steering wheel 615 615 0    
Floor mats 140 140 140    
iPod integration 440 440 440 0 0
Navigation system 2,110 2,110   2,100  
Heated front seats 510 510 510 450  
Bluetooth cell phone link 695 695 695 500  
Wood trim 890 890 890    
Steering-linked headlights 690 690 690    
Satellite radio 750 750 750    
Obstacle detection, rear 530 530 530 350  
Adaptive dampers - electrical 1,990        
Convenience Package       1,800  
Upgraded leather upholstery       1,000  
Front sport buckets       500  
Adaptive Sports Seats 2,597 2,597      
Auto-dimming rearview mirror 0 0      
Metallic paint (extra cost) 0 0   443  
Audio controls on steering wheel 0 0 0    
Floor mats 119 119 119    
iPod integration 0 0 0 0 0
Navigation system 1,794 1,794   1,953  
Heated front seats 0 0 425 418  
Bluetooth cell phone link 0 0 0 466  
Wood trim 757 757 757    
Steering-linked headlights 0 0 0    
Satellite radio 0 0 0    
Obstacle detection, rear 451 451 451 325  
Adaptive dampers - electrical 1,692        
Convenience Package       1,675  
Upgraded leather upholstery       930  
Front sport buckets       466  
Options (change) 13,545 11,555 4,645 7,175 0
Options (change) 7,410 5,718 1,752 6,676 0
Destination 950 950 950 775 775
Gas Tax 0 0 0 0 2,100
Total Price $103,295 $112,305 $149,395 $55,850 $84,775

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 911 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 911 vs. Audi A4 / S4 / RS4

Lowest Adjusted Price: Audi A4 / S4 / RS4 A4 3.2 Cabriolet
Lowest Adjusted Invoice: Porsche 911 Turbo
TrueDelta Adjusted Price Difference: $49,225
TrueDelta Adjusted Invoice Difference: $47,689
Model Year20102010201020082008
Model911911911A4 / S4 / RS4A4 / S4 / RS4
TrimCarreraCarrera STurboA4 3.2 CabrioletRS4 Cabriolet
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Engine345hp H6385hp H6500hp H6255hp V6420hp V8
TransmissionM6M6M6T6M6
DrivetrainRWDRWDAWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)235, 9235, 9385, 13180, 9215, 9
Tire (rear if not all the same)235/40-18235/35-19235/35-19235/45-17255/35-19
Total Price$103,295$112,305$149,395$55,850$84,775
Adjustments for Features00-2,725-1,780-2,405
Feature-Adjusted Total Price$103,295$112,305$146,670$54,070$82,370
Cost Above Minimum$0$9,010$43,375$0$28,300

Return to top

Features Comparison: Porsche 911 vs. Audi A4 / S4 / RS4

Model Year20102010201020082008
Model911911911A4 / S4 / RS4A4 / S4 / RS4
TrimCarreraCarrera STurboA4 3.2 CabrioletRS4 Cabriolet
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Transmission and Drivetrain 
6-speed manual$150$150$150 $150
6-speed manually-shiftable automatic   $1100 
RWD$0$0   
AWD  $1700$1700$1700
Accessories 
Power rear side windows   $200$200
Remote window/roof operation$15$15$15  
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats   $0$0
Full-size spare tire   $225$225
Knee airbag, driver   $75$75
Knee airbag, passenger   $75$75
Cargo Management 
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$15  
Drivetrain 
Limited-slip rear differential  $300  
Engine / Motor 
Rear-engine configuration$0$0$0  
Exterior 
Body kit    $0
Bodyside moldings   $75$75
Larger rear spoiler  $200  
Rear spoiler    $200
Retractable rear spoiler$400$400   
Sunroof    $900
Infotainment 
Aux input$50$50$50  
CD player$125$125$125  
DVD-Audio-compatible player$0$0$0  
Media drive$15$15$15  
Off-road navigation system$0$0$0  
Satellite radio$200$200$200 $200
SD Card slot   $25 
Surround sound  $250  
Instruments, Lights, and Mirrors 
Boost gauge  $75  
Compass   $0$0
Power-folding mirrors   $50$50
Turn signals on or near mirrors   $25$25
Seats and Interior Trim 
Carbon fiber trim    $200
Center armrest(s), second row   $50$50
Folding second row seats$300$300$300  
Heated second row seats    $200
Manual height adjuster, driver seat    $50
Manual thigh support length adjuster, driver seat    $50
Metal pedals$75$75$75  
Power fore-aft adjuster, driver seat$100$100$100$100 
Power height adjuster, driver seat$100$100$100$100 
Power recliner, driver seat$100$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$100 
Upholstered instrument panel, leather  $1000  
Wood trim$300$300$300$300 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500$500  
Hydraulically cross-linked dampers    $500
Ultra-sport suspension (upgrade)    $0
Total Value of Features$2,945$2,945$5,670$4,725$5,350
Value of Feature Adjustments$0$0$2,725$1,780$2,405
Value of Feature Adjustments00-49-1,657-2,242

Return to top

Specifications Comparison: Porsche 911 vs. Audi A4 / S4 / RS4

Model Year20102008
Model911A4 / S4 / RS4
Body2dr Convertible2dr Convertible
Wheelbase92.5 in104.3 in
Length175.6 in180.0 in
Width71.2 in70.0 in
Height51.6 in54.8 in
Curb Weight3,264 lb.3,859 lb.
Fuel Capacity16.9 gal.16.6 gal.
Row 1 Headroom38.0 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 Headroom31.5 in36.3 in
Row 2 Shoulder Room0.0 in45.1 in
Row 2 Legroom0.0 in32.4 in
Cargo Volume4.4 ft38.9 ft3

Return to top

Option Package Details
Porsche 911 Carrera

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 tilt adjuster, passenger seat100Yes
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Carrera 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 tilt adjuster, passenger seat100Yes
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Audi A4 / S4 / RS4 A4 3.2 Cabriolet

Upgraded leather upholstery
FeatureValueRequested?
Upgraded leather upholstery0No
Leather upholstery, extended coverage0No
Upholstered door panels, leather250Yes
Total Requested250100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote-125No
SD Card slot25No
Total Requested600120%
Total Not Requested-100-20%
Convenience Package
FeatureValueRequested?
Memory system, driver seat200Yes
Automatic headlights125Yes
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50No
Auto-dimming passenger-side mirror75Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Total Requested147597%
Total Not Requested503%

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 Coupes and Convertibles.
See TrueDelta's information for all Porsche models.