Cadillac STS Cadillac STS 2008 Audi A8 / S8 Audi A8 / S8 2009

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Cadillac STS vs. Audi A8 / S8 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.

Cadillac STS vs. Audi A8 / S8 Invoice Comparison

Lowest Total Price: $81,650

Cadillac STS STS-V   
Difference: $23,825

Lowest Total Invoice: $74,954

Cadillac STS STS-V   
Difference: $23,342

Calculate Payments

  Down Payment Interest Rate Term
Model Year20082009
ModelSTSA8 / S8
TrimSTS-VS8
Body4dr Sedan4dr Sedan
Base Price $77,575 $96,200
Base Invoice $71,083 $89,465
Sunroof 1,200  
Cold Weather Package   850
Upholstered instrument panel, leather   4,900
Rear air vents with automatic controls   600
Sunroof 996  
Cold Weather Package   791
Upholstered instrument panel, leather   4,558
Rear air vents with automatic controls   557
Options (change) 1,200 6,350
Options (change) 996 5,906
Destination 775 825
Gas Tax 2,100 2,100
Total Price $81,650 $105,475
Total Invoice $74,954 $98,296

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

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

Lowest Adjusted Price and Invoice: Cadillac STS STS-V
TrueDelta Adjusted Price Difference: $18,800
TrueDelta Adjusted Invoice Difference: $18,659
Model Year20082009
ModelSTSA8 / S8
TrimSTS-VS8
Body4dr Sedan4dr Sedan
Engine469hp V8450hp V10
TransmissionT6T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)13/19 MPG13/19 MPG
Audio (watts, speakers)300, 15200, 12
Tire (rear if not all the same)255/45-18265/35-20
Total Price$81,650$105,475
Adjustments for Features0-5,025
Feature-Adjusted Total Price$81,650$100,450
Total Invoice$74,954$98,296
Adjustments for Features0-4,683
Feature-Adjusted Total Invoice$74,954$93,613

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Features Comparison: Cadillac STS vs. Audi A8 / S8

Model Year20082009
ModelSTSA8 / S8
TrimSTS-VS8
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
RWD$0 
AWD $1700
Accessories 
Power door closers $300
Power trunk closer $350
Remote start$150 
Remote window/roof operation $15
Sunshade, rear, power $225
Sunshades, second row $125
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Blind spot warning system$200 
Full-size spare tire $225
Knee airbag, driver $75
Knee airbag, passenger $75
Lane departure warning$200 
Obstacle detection, front $150
Rear side airbags $300
Rearview camera $200
Temporary spare tire$150 
Tires, run-flat$150 
Cargo Management 
Cargo net$40 
Ski sack $50
Climate Control 
Rear air vents with automatic controls $250
Rear air vents with manual controls$150 
Rear dual-zone climate control $125
Residual heat $50
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Bodyside moldings $75
Laminated front side windows$200 
Rear spoiler$200 
Infotainment 
CD changer, in-dash$325 
CD changer, remote $200
DVD-compatible player$0 
iPod integration $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
Cornering lights $50
Fog light, rear $100
Head-up display (HUD)$350 
Interior ambient lighting $150
Mirror tilt-down in reverse $25
Power-folding mirrors $50
Steering-linked headlights $150
Seats and Interior Trim 
Memory system, passenger seat $150
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Power upper seatback recliner, driver seat $100
Power upper seatback recliner, passenger seat $100
Synthetic suede headliner $650
Synthetic suede inserts in leather seating surfaces$0 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500
Air suspension, auto-leveling and height adjustable $1000
Auto-leveling rear shocks$200 
Performance steering system (optional)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$4,165$9,190
Value of Feature Adjustments$0$5,025
Value of Feature Adjustments0-4,683

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Specifications Comparison: Cadillac STS vs. Audi A8 / S8

Model Year20082009
ModelSTSA8 / S8
Body4dr Sedan4dr Sedan
Wheelbase116.4 in115.9 in
Length196.7 in199.3 in
Width72.6 in74.6 in
Height57.6 in56.9 in
Curb Weight4,233 lb.4,586 lb.
Fuel Capacity17.0 gal.23.8 gal.
Row 1 Headroom38.7 in37.3 in
Row 1 Shoulder Room58.6 in59.1 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.6 in41.4 in
Row 2 Headroom37.9 in38.0 in
Row 2 Shoulder Room57.4 in57.5 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in37.6 in
Cargo Volume13.8 ft314.6 ft3

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Option Package Details
Audi A8 / S8 S8

Upholstered instrument panel, leather
FeatureValueRequested?
Upholstered instrument panel, leather1000Yes
Leather upholstery, extended coverage0No
Total Requested1000100%
Total Not Requested00%
Rear air vents with automatic controls
FeatureValueRequested?
Rear air vents with automatic controls150No
Rear dual-zone climate control125No
Total Requested00%
Total Not Requested275100%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Steering-wheel-mounted transmission controls100No
Total Requested40073%
Total Not Requested15027%

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