Cadillac STS Cadillac STS 2007 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: $77,855

Cadillac STS STS-V   
Difference: $370

Lowest Total Invoice: $71,479

Cadillac STS STS-V   
Difference: $1,420

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072010
ModelSTSA6 / S6
TrimSTS-VS6
Body4dr Sedan4dr Sedan
Base Price $73,810 $76,100
Base Invoice $67,638 $70,774
Sunroof 1,200  
Sunroof 996  
Options (change) 1,200 0
Options (change) 996 0
Destination 745 825
Gas Tax 2,100 1,300
Total Price $77,855 $78,225
Total Invoice $71,479 $72,899

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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 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: Audi A6 / S6 S6
Lowest Adjusted Invoice: Cadillac STS STS-V
TrueDelta Adjusted Price Difference: $395
TrueDelta Adjusted Invoice Difference: $707
Model Year20072010
ModelSTSA6 / S6
TrimSTS-VS6
Body4dr Sedan4dr Sedan
Engine469hp V8435hp V10
TransmissionT6T6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)14/20 MPG14/19 MPG
Audio (watts, speakers)300, 15255, 9
Tire (rear if not all the same)255/45-18265/35-19
Total Price$77,855$78,225
Adjustments for Features0-765
Feature-Adjusted Total Price$77,855$77,460
Total Invoice$71,479$72,899
Adjustments for Features0-713
Feature-Adjusted Total Invoice$71,479$72,186

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Features Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20072010
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
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
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$4,575$5,340
Value of Feature Adjustments$0$765
Value of Feature Adjustments0-713

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Specifications Comparison: Cadillac STS vs. Audi A6 / S6

Model Year20072010
ModelSTSA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in111.9 in
Length196.3 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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