Cadillac STS Cadillac STS 2009 Audi A6 / S6 Audi A6 / S6 2010

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Cadillac STS vs. Audi A6 / S6 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 A6 / S6 Invoice Comparison

Lowest Total Price: $78,725

Audi A6 / S6 S6   
Difference: $5,510

Lowest Total Invoice: $73,365

Audi A6 / S6 S6   
Difference: $3,954

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092010
ModelSTSA6 / S6
TrimSTS-VS6
Body4dr Sedan4dr Sedan
Base Price $80,160 $76,100
Base Invoice $73,448 $70,774
Sunroof 1,200  
Blind spot warning system   500
Sunroof 996  
Blind spot warning system   466
Options (change) 1,200 500
Options (change) 996 466
Destination 775 825
Gas Tax 2,100 1,300
Total Price $84,235 $78,725
Total Invoice $77,319 $73,365

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Cadillac STS dealer quotes or Audi A6 / S6 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Audi A6 / S6

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6
TrueDelta Adjusted Price Difference: $6,100
TrueDelta Adjusted Invoice Difference: $4,504
Model Year20092010
ModelSTSA6 / S6
TrimSTS-VS6
Body4dr Sedan4dr Sedan
Engine469hp V8435hp V10
TransmissionT6T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)13/19 MPG14/19 MPG
Audio (watts, speakers)300, 15255, 9
Tire (rear if not all the same)255/45-18265/35-19
Total Price$84,235$78,725
Adjustments for Features0-590
Feature-Adjusted Total Price$84,235$78,135
Total Invoice$77,319$73,365
Adjustments for Features0-550
Feature-Adjusted Total Invoice$77,319$72,815

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Features Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20092010
ModelSTSA6 / S6
TrimSTS-VS6
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
RWD$0 
AWD $1700
Accessories 
Heated steering wheel$100 
Remote start$150 
Sunshade, rear, power $225
Sunshades, second row $125
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Full-size spare tire $225
Lane departure warning$200 
Obstacle detection, rear$250 
Rearview camera $200
Tires, run-flat$150 
Cargo Management 
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Rear air vents $100
Rear air vents with manual controls$150 
Residual heat $50
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Bodyside cladding $350
Laminated front side windows$200 
Rear spoiler$200 
Infotainment 
Aux input $50
CD changer, in-dash$325 
CD changer, remote $200
iPod integration $100
Media drive $15
MP3-compatible player $50
Rear seat audio controls$25 
Telematics service, such as OnStar, with navigation$225 
Traffic information $25
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200 
Auto-dimming passenger-side mirror $75
Compass $0
Cornering lights $50
Fog light, rear $100
Head-up display (HUD)$350 
Interior ambient lighting $150
Mirror tilt-down in reverse $25
Steering-linked headlights $150
Seats and Interior Trim 
Folding second row seats $300
Manual thigh support length adjuster, driver seat $50
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Synthetic suede inserts in leather seating surfaces$0 
Upholstered instrument panel, leather$1000 
Suspension, Wheels, and Tires 
Auto-leveling rear shocks$200 
Performance steering system (optional)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$5,125$5,715
Value of Feature Adjustments$0$590
Value of Feature Adjustments0-550

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Specifications Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20092010
ModelSTSA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in111.9 in
Length196.7 in193.5 in
Width72.6 in73.0 in
Height57.6 in57.5 in
Curb Weight4,233 lb.4,519 lb.
Fuel Capacity17.0 gal.21.1 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room58.6 in57.1 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.6 in41.3 in
Row 2 Headroom37.9 in37.8 in
Row 2 Shoulder Room57.4 in55.9 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in36.9 in
Cargo Volume13.8 ft315.9 ft3

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See TrueDelta's information for all Sedans
See TrueDelta's information for all Cadillac models.