Audi A8 / S8 Audi A8 / S8 2008 Cadillac STS Cadillac STS 2010

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Audi A8 / S8 vs. Cadillac STS 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. Cadillac STS Invoice Comparison

Lowest Total Price: $69,610

Cadillac STS V8 Performance   
Difference: $7,680

Lowest Total Invoice: $65,827

Cadillac STS V8 Performance   
Difference: $6,087

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820082010
ModelA8 / S8A8 / S8STS
TrimA8S8V8 Performance
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $70,690 $93,300 $68,785
Base Invoice $65,741 $86,771 $65,002
Ski sack 175 175  
Laminated front side windows 600    
Satellite radio 550 550  
Cooled or ventilated front seats 1,500    
Heated steering wheel 300 300  
Adaptive cruise control 2,100 2,100  
Rear air vents with automatic controls 600 600  
Ski sack 164 164  
Laminated front side windows 557    
Satellite radio 490 501  
Cooled or ventilated front seats 1,396    
Heated steering wheel 281 281  
Adaptive cruise control 1,953 1,953  
Rear air vents with automatic controls 557 557  
Options (change) 5,825 3,725 0
Options (change) 5,398 3,456 0
Destination 775 775 825
Gas Tax 0 2,100 0
Total Price $77,290 $99,900 $69,610
Total Invoice $71,914 $93,102 $65,827

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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 A8 / S8 dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Audi A8 / S8 vs. Cadillac STS

Lowest Adjusted Price and Invoice: Cadillac STS V8 Performance
TrueDelta Adjusted Price Difference: $4,840
TrueDelta Adjusted Invoice Difference: $3,445
Model Year200820082010
ModelA8 / S8A8 / S8STS
TrimA8S8V8 Performance
Body4dr Sedan4dr Sedan4dr Sedan
Engine350hp V8450hp V10320hp V8
TransmissionT6T6T6
DrivetrainAWDAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)200, 12200, 12300, 15
Tire (rear if not all the same)255/45-18265/35-20235/50-18
Total Price$77,290$99,900$69,610
Adjustments for Features-2,840-3,0400
Feature-Adjusted Total Price$74,450$96,860$69,610
Cost Above Minimum$0$22,410$0
Total Invoice$71,914$93,102$65,827
Adjustments for Features-2,642-2,8330
Feature-Adjusted Total Invoice$69,272$90,269$65,827
Cost Above Minimum$0$20,997$0

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Features Comparison: Audi A8 / S8 vs. Cadillac STS

Model Year200820082010
ModelA8 / S8A8 / S8STS
TrimA8S8V8 Performance
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100
AWD$1700$1700 
RWD  $0
Accessories 
Power trunk / liftgate pull-down$50$50 
Proximity key  $250
Remote start  $150
Remote window/roof operation$15$15 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0 
Blind spot warning system  $200
Full-size spare tire$225$225 
Knee airbag, driver$75$75 
Knee airbag, passenger$75$75 
Lane departure warning  $200
Obstacle detection, rear  $250
Rear side airbags$300$300 
Temporary spare tire  $150
Cargo Management 
Cargo net  $40
Ski sack$50$50 
Climate Control 
Heated windshield washer nozzles$15$15 
Rain-sensing wipers$175$175 
Rear air vents with automatic controls$250$250 
Rear air vents with manual controls  $150
Rear dual-zone climate control$125$125 
Residual heat$50$50 
Variable intermittent wipers  $75
Drivetrain 
Limited-slip rear differential  $300
Exterior 
Bodyside moldings$75$75 
Laminated front side windows$200 $200
Rear spoiler  $200
Infotainment 
CD changer, in-dash  $325
CD changer, remote$200$200 
DVD-compatible player  $0
iPod integration$100$100 
Rear seat audio controls  $25
Telematics service, such as OnStar, with navigation  $225
Instruments, Lights, and Mirrors 
Auto-dimming headlights  $200
Auto-dimming passenger-side mirror$75$75 
Cornering lights$50$50 
Fog light, rear$100$100 
Head-up display (HUD)  $350
Interior ambient lighting$150$150 
Mirror tilt-down in reverse$25$25 
Power-folding mirrors$50$50 
Steering-linked headlights$150$150 
Seats and Interior Trim 
Cooled or ventilated front seats$300 $300
Leather door panel trim $250 
Leather-wrapped steering wheel$150$150 
Massage, driver seat$100  
Massage, passenger seat$100  
Memory system, passenger seat$150$150 
Power headrest height adjuster, driver seat$50$50 
Power headrest height adjuster, passenger seat$50$50 
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 
Synthetic suede headliner $650 
Wood/leather-wrapped steering wheel  $150
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000$1000 
Alloy wheels$350$350 
Polished alloy wheels  $350
Sport suspension (upgrade) $0$0
Total Value of Features$8,030$8,230$5,190
Value of Feature Adjustments$2,840$3,040$0
Value of Feature Adjustments-2,642-2,8330

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Specifications Comparison: Audi A8 / S8 vs. Cadillac STS

Model Year20082010
ModelA8 / S8STS
Body4dr Sedan4dr Sedan
Wheelbase115.9 in116.4 in
Length199.3 in196.7 in
Width74.6 in72.6 in
Height56.9 in57.6 in
Curb Weight4,289 lb.3,974 lb.
Fuel Capacity23.8 gal.17.0 gal.
Row 1 Headroom37.3 in38.7 in
Row 1 Shoulder Room59.1 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.4 in42.6 in
Row 2 Headroom38.0 in37.9 in
Row 2 Shoulder Room57.5 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom37.6 in38.3 in
Cargo Volume14.6 ft313.8 ft3

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