Audi A8 / S8 Audi A8 / S8 2008 Porsche 911 Porsche 911 2008

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Audi A8 / S8 vs. Porsche 911 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 A8 / S8 vs. Porsche 911 Invoice Comparison

Lowest Total Price: $74,405

Audi A8 / S8 A8   
Difference: $16,780

Lowest Total Invoice: $69,251

Audi A8 / S8 A8   
Difference: $10,087

Calculate Payments

  Down Payment Interest Rate Term
Model Year2008200820082008200820082008
ModelA8 / S8A8 / S8911911911911911
TrimA8S8CarreraCarrera STargaTarga STurbo
Body4dr Sedan4dr Sedan2dr Coupe2dr Coupe2dr Coupe2dr Coupe2dr Coupe
Base Price $70,690 $93,300 $73,500 $83,800 $87,000 $97,300 $126,200
Base Invoice $65,741 $86,771 $64,174 $73,192 $76,038 $85,011 $110,313
Synthetic suede headliner 1,500            
Leather door panel trim 750            
Wood/leather-wrapped steering wheel 690   1,360 1,360 1,360 1,360 620
Upholstered instrument panel, leather   4,900 3,005 3,005 3,005 3,005  
Adaptive Sports Seats     3,055 3,055 3,055 3,055  
Auto-dimming rearview mirror     385 385 385 385  
Xenon HID headlights     1,090   1,090    
Metallic paint (extra cost)     690 690 690 690  
Floor mats     140 140 140 140 140
Bluetooth cell phone link     960 960 960 960 960
Adaptive dampers - electrical     1,990   1,990    
Navigation system     2,110 2,110 2,110 2,110  
Heated front seats     500 500 500 500 500
CD changer, remote     650 650 650 650 650
Wood trim     890 890 890 890 890
Synthetic suede headliner 1,396            
Leather door panel trim 698            
Wood/leather-wrapped steering wheel 641   1,156 1,156 1,156 1,156 527
Upholstered instrument panel, leather   4,558 2,554 2,554 2,554 2,554  
Adaptive Sports Seats     2,597 2,597 2,597 2,597  
Auto-dimming rearview mirror     327 327 327 327  
Xenon HID headlights     927   927    
Metallic paint (extra cost)     587 587 587 587  
Floor mats     119 119 119 119 119
Bluetooth cell phone link     816 816 816 816 816
Adaptive dampers - electrical     1,692   1,692    
Navigation system     1,794 1,794 1,794 1,794  
Heated front seats     425 425 425 425 425
CD changer, remote     553 553 553 553 553
Wood trim     757 757 757 757 757
Options (change) 2,940 4,900 16,825 13,745 16,825 13,745 3,760
Options (change) 2,735 4,558 14,304 11,685 14,304 11,685 3,197
Destination 775 775 860 860 860 860 860
Gas Tax 0 2,100 0 0 0 0 0
Total Price $74,405 $101,075 $91,185 $98,405 $104,685 $111,905 $130,820
Total Invoice $69,251 $94,204 $79,338 $85,737 $91,202 $97,556 $114,370

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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: Audi A8 / S8 vs. Porsche 911

Lowest Adjusted Price and Invoice: Audi A8 / S8 A8
TrueDelta Adjusted Price Difference: $21,940
TrueDelta Adjusted Invoice Difference: $14,890
Model Year2008200820082008200820082008
ModelA8 / S8A8 / S8911911911911911
TrimA8S8CarreraCarrera STargaTarga STurbo
Body4dr Sedan4dr Sedan2dr Coupe2dr Coupe2dr Coupe2dr Coupe2dr Coupe
Engine350hp V8450hp V10325hp H6355hp H6325hp H6355hp H6480hp H6
TransmissionT6T6M6M6M6M6M6
DrivetrainAWDAWDRWDRWDAWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)200, 12200, 12235, 9235, 9235, 9235, 9325, 13
Tire (rear if not all the same)255/45-18265/35-20235/40-18235/35-19235/40-18235/35-19235/35-19
Total Price$74,405$101,075$91,185$98,405$104,685$111,905$130,820
Adjustments for Features-5,160-6,0600-125-2,000-2,125-1,850
Feature-Adjusted Total Price$69,245$95,015$91,185$98,280$102,685$109,780$128,970
Cost Above Minimum$0$25,770$0$7,095$11,500$18,595$37,785
Total Invoice$69,251$94,204$79,338$85,737$91,202$97,556$114,370
Adjustments for Features-4,803-5,6480-109-1,742-1,853-1,617
Feature-Adjusted Total Invoice$64,448$88,556$79,338$85,628$89,460$95,703$112,753
Cost Above Minimum$0$24,108$0$6,290$10,122$16,365$33,415

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Features Comparison: Audi A8 / S8 vs. Porsche 911

Model Year2008200820082008200820082008
ModelA8 / S8A8 / S8911911911911911
TrimA8S8CarreraCarrera STargaTarga STurbo
Body4dr Sedan4dr Sedan2dr Coupe2dr Coupe2dr Coupe2dr Coupe2dr Coupe
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100     
6-speed manual  $150$150$150$150$150
AWD$1700$1700  $1700$1700$1700
RWD  $0$0   
Accessories 
Power rear side windows$200$200     
Power trunk / liftgate pull-down$50$50     
Tilt/telescoping steering wheel, manual  $250$250$250$250$250
Tilt/telescoping steering wheel, power$350$350     
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     
Rear side airbags$300$300     
Side curtain airbags$350$350     
Climate Control 
Automatic air recirculation$100$100     
Dual-zone climate control$125$125     
Rear air vents$100$100     
Residual heat$50$50     
Water-repellent front-door glass  $15$15$15$15$15
Drivetrain 
Limited-slip rear differential      $300
Engine / Motor 
Rear-engine configuration  $0$0$0$0$0
Exterior 
Bodyside moldings$75$75     
Larger rear spoiler      $200
Panoramic sunroof    $1200$1200 
Retractable rear spoiler  $400$400$400$400 
Sunroof$900$900$900$900  $900
Infotainment 
CD player  $125$125$125$125$125
DVD-Audio-compatible player      $0
iPod integration$100$100     
MP3-compatible player  $50$50$50$50$50
Off-road navigation system  $0$0$0$0$0
Surround sound$250$250    $250
Voice control for nav and audio$100$100     
Instruments, Lights, and Mirrors 
Auto-dimming passenger-side mirror$75$75     
Boost gauge      $75
Cornering lights$50$50     
Fog light, rear$100$100     
Fog lights$125$125 $125 $125$125
Mirror tilt-down in reverse$25$25     
Power-folding mirrors$50$50     
Steering-linked headlights$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$300$300
Heated second row seats$200$200     
Leather-wrapped steering wheel $150     
Memory system, passenger seat$150$150     
Metal pedals  $75$75$75$75$75
Power headrest height adjuster, driver seat$50$50     
Power headrest height adjuster, passenger seat$50$50     
Power seatback bolsters, driver seat  $100$100$100$100 
Power seatback bolsters, passenger seat  $100$100$100$100 
Power thigh bolsters, driver seat  $100$100$100$100 
Power thigh bolsters, passenger seat  $100$100$100$100 
Power thigh support length adjuster, driver seat$100$100     
Power thigh support length adjuster, passenger seat$100$100     
Power upper seatback recliner, driver seat$100$100     
Power upper seatback recliner, passenger seat$100$100     
Upholstered instrument panel, leather $1000$1000$1000$1000$1000$1000
Wood/leather-wrapped steering wheel$150 $150$150$150$150$150
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000$1000     
Sport suspension (upgrade) $0     
Transmission 
Steering-wheel-mounted transmission controls$100      
Total Value of Features$8,975$9,875$3,815$3,940$5,815$5,940$5,665
Value of Feature Adjustments$5,160$6,060$0$125$2,000$2,125$1,850
Value of Feature Adjustments-4,803-5,6480-109-1,742-1,853-1,617

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Specifications Comparison: Audi A8 / S8 vs. Porsche 911

Model Year20082008
ModelA8 / S8911
Body4dr Sedan2dr Coupe
Wheelbase115.9 in92.5 in
Length199.3 in175.6 in
Width74.6 in71.2 in
Height56.9 in51.6 in
Curb Weight4,289 lb.3,076 lb.
Fuel Capacity23.8 gal.17.0 gal.
Row 1 Headroom37.3 in38.0 in
Row 1 Shoulder Room59.1 in51.7 in
Row 1 Hip Room0.0 in53.4 in
Row 1 Legroom41.4 in41.6 in
Row 2 Headroom38.0 in31.5 in
Row 2 Shoulder Room57.5 in0.0 in
Row 2 Legroom37.6 in0.0 in
Cargo Volume14.6 ft34.8 ft3

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Option Package Details
Porsche 911 Carrera

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Total Requested225100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Total Requested550100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Carrera S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Total Requested225100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Targa

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Total Requested225100%
Total Not Requested00%
Xenon HID headlights
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Total Requested550100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Targa S

Auto-dimming rearview mirror
FeatureValueRequested?
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Total Requested225100%
Total Not Requested00%
Navigation system
FeatureValueRequested?
Navigation system600Yes
Off-road navigation system0No
Total Requested600100%
Total Not Requested00%
Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%
Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
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
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200Yes
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat100Yes
Total Requested110073%
Total Not Requested40027%

Option Package Details
Porsche 911 Turbo

Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%

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