Porsche 911 Porsche 911 2009 Audi A4 / S4 Audi A4 / S4 2009

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Porsche 911 vs. Audi A4 / S4 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 Invoice Comparison

Lowest Total Price: $56,050

Audi A4 / S4 A4 3.2 Cabriolet   
Difference: $42,900

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092009200920092009
Model911911911A4 / S4A4 / S4
TrimCarreraCarrera STurboA4 3.2 CabrioletS4 Cabriolet
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Base Price $86,200 $96,800 $139,300 $48,800 $57,125
Adaptive Sports Seats 3,055 3,055      
Auto-dimming rearview mirror 420 420      
Metallic paint (extra cost) 710 710   475 475
Audio controls on steering wheel 870 870      
Floor mats 140 140 140    
Satellite radio 750 750 750    
Heated front seats 500 500 500 450  
Navigation system 2,110 2,110   2,100 1,950
iPod integration 440 440 440 0 0
Obstacle detection, rear 530 530 530 350 350
Wood trim 890 890 890   400
Steering-linked headlights 690 690      
Bluetooth cell phone link 695 695 695    
Wood/leather-wrapped steering wheel     255    
6-speed manual     0    
Convenience Package       1,550 2,275
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   443 443
Audio controls on steering wheel 0 0      
Floor mats 119 119 119    
Satellite radio 0 0 0    
Heated front seats 425 425 425 418  
Navigation system 1,794 1,794   1,953 1,813
iPod integration 0 0 0 0 0
Obstacle detection, rear 451 451 451 325 325
Wood trim 757 757 757   373
Steering-linked headlights 0 0      
Bluetooth cell phone link 0 0 0    
Wood/leather-wrapped steering wheel     0    
6-speed manual     0    
Convenience Package       1,442 2,115
Upgraded leather upholstery       930  
Front sport buckets       466  
Options (change) 11,800 11,800 4,200 6,425 5,450
Options (change) 6,143 6,143 1,752 5,977 5,069
Destination 950 950 950 825 825
Gas Tax 0 0 0 0 1,700
Total Price $98,950 $109,550 $144,450 $56,050 $65,100

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

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TrueDelta Value Comparison: Porsche 911 vs. Audi A4 / S4

Lowest Adjusted Price: Audi A4 / S4 A4 3.2 Cabriolet
Lowest Adjusted Invoice: Porsche 911 Turbo
TrueDelta Adjusted Price Difference: $45,455
TrueDelta Adjusted Invoice Difference: $47,164
Model Year20092009200920092009
Model911911911A4 / S4A4 / S4
TrimCarreraCarrera STurboA4 3.2 CabrioletS4 Cabriolet
Body2dr Convertible2dr Convertible2dr Convertible2dr Convertible2dr Convertible
Engine345hp H6385hp H6480hp H6255hp V6340hp 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)235/40-18235/35-19235/35-19235/40-18235/40-18
Total Price$98,950$109,550$144,450$56,050$65,100
Adjustments for Features0-500-3,075-2,555-1,205
Feature-Adjusted Total Price$98,950$109,050$141,375$53,495$63,895
Cost Above Minimum$0$10,100$42,425$0$10,400

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Features Comparison: Porsche 911 vs. Audi A4 / S4

Model Year20092009200920092009
Model911911911A4 / S4A4 / S4
TrimCarreraCarrera STurboA4 3.2 CabrioletS4 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 
Bodyside moldings   $75$75
Larger rear spoiler  $200  
Retractable rear spoiler$400$400   
Infotainment 
Aux input$50$50$50  
Bluetooth cell phone link$100$100$100$100 
DVD-Audio-compatible player$0$0$0  
Media drive$15$15$15  
Off-road navigation system$0$0$0  
SD Card slot   $25$25
Surround sound  $250  
Instruments, Lights, and Mirrors 
Boost gauge  $75  
Compass   $0$0
Steering-linked headlights$150$150 $150$150
Turn signals on or near mirrors   $25$25
Seats and Interior Trim 
Center armrest(s), second row   $50$50
Folding second row seats$300$300$300  
Leather-wrapped steering wheel$150$150 $150$150
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/leather-wrapped steering wheel  $150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500$500  
Ultra-sport suspension (upgrade)    $0
Total Value of Features$2,220$2,720$5,295$4,775$3,425
Value of Feature Adjustments$0$500$3,075$2,555$1,205
Value of Feature Adjustments0-32-58-2,379-1,124

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Specifications Comparison: Porsche 911 vs. Audi A4 / S4

Model Year20092009
Model911A4 / S4
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

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

Option Package Details
Audi A4 / S4 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
Steering-linked headlights150Yes
Xenon HID headlights500Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125Yes
Total Requested1475100%
Total Not Requested00%

Option Package Details
Audi A4 / S4 S4 Cabriolet

Navigation system
FeatureValueRequested?
Navigation system600Yes
CD changer, remote200No
SD Card slot25No
Total Requested60073%
Total Not Requested22527%
Convenience Package
FeatureValueRequested?
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Bose, 215W, 9 speakers (with subwoofer)350No
Steering-linked headlights150Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Auto-dimming passenger-side mirror75Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers100Yes
Automatic headlights125Yes
Total Requested97574%
Total Not Requested35026%

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