Audi A6 / S6 Audi A6 / S6 2017 Cadillac STS Cadillac STS 2007
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Audi A6 / S6 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 A6 / S6 vs. Cadillac STS Invoice Comparison

Lowest Total Price: $72,925

Audi A6 / S6 S6 4.0 TFSI   
Difference: $4,930

Lowest Total Invoice: $67,891

Audi A6 / S6 S6 4.0 TFSI   
Difference: $3,588

Calculate Payments

  Down Payment Interest Rate Term
Model Year20172007
ModelA6 / S6STS
TrimS6 4.0 TFSISTS-V
Body4dr Sedan4dr Sedan
Base Price $70,900 $73,810
Base Invoice $65,938 $67,638
Cold Weather Package 500  
Metallic paint (extra cost) 575  
Sunroof   1,200
Cold Weather Package 467  
Metallic paint (extra cost) 536  
Sunroof   996
Options (change) 1,075 1,200
Options (change) 1,003 996
Destination 950 745
Gas Tax 0 2,100
Total Price $72,925 $77,855
Total Invoice $67,891 $71,479

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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 A6 / S6 dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $8,870
TrueDelta Adjusted Invoice Difference: $7,256
Model Year20172007
ModelA6 / S6STS
TrimS6 4.0 TFSISTS-V
Body4dr Sedan4dr Sedan
Engine450hp V8469hp V8
TransmissionS7T6
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)18/27 MPG14/20 MPG
Audio (watts, speakers)630, 14300, 15
Tire (rear if not all the same)255/40-19255/45-18
Total Price$72,925$77,855
Adjustments for Features-3,9400
Feature-Adjusted Total Price$68,985$77,855
Total Invoice$67,891$71,479
Adjustments for Features-3,6680
Feature-Adjusted Total Invoice$64,223$71,479

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Features Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20172007
ModelA6 / S6STS
TrimS6 4.0 TFSISTS-V
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
7-speed automated manual$1200 
6-speed manually-shiftable automatic $1100
AWD$1700 
RWD $0
Accessories 
Remote start $150
Brakes, Airbags, and Other Safety 
Blind spot warning system$200 
Collision preparation system, rear$100 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Rearview camera$200 
Rollover sensor$50 
Secondary collision brake assist$25 
Tires, run-flat $150
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
Engine / Motor 
Automatic start / stop$150 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Rear spoiler $200
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
Apple CarPlay support$100 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
Media drive$15 
MP3-compatible player$50 
Rear seat audio controls $25
Telematics service, such as OnStar, with navigation $225
Traffic + travel information$25 
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Compass$0 
Fog light, rear$100 
Fog lights $125
Headlight washers $50
Mirror tilt-down in reverse$25 
Power-folding mirrors$50 
Seats and Interior Trim 
Folding second row seats$300 
Synthetic suede inserts in leather seating surfaces $0
Upholstered instrument panel, leather $1000
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Auto-leveling rear shocks $200
Electronic systems calibration selector$200 
Performance steering system (optional) $0
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$8,140$4,200
Value of Feature Adjustments$3,940$0
Value of Feature Adjustments-3,6680

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See a complete comparison of Audi A6 / S6 vs. Cadillac STS features.

Specifications Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20172007
ModelA6 / S6STS
Body4dr Sedan4dr Sedan
Wheelbase114.6 in116.4 in
Length194.2 in196.3 in
Width73.8 in72.6 in
Height57.8 in57.6 in
Curb Weight4,398 lb.4,233 lb.
Fuel Capacity19.8 gal.17.0 gal.
Row 1 Headroom37.2 in38.7 in
Row 1 Shoulder Room57.5 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.6 in
Row 2 Headroom37.8 in37.9 in
Row 2 Shoulder Room56.3 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom37.4 in38.3 in
Cargo Volume14.1 ft313.8 ft3

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See a complete comparison of Audi A6 / S6 vs. Cadillac STS specs.

Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100Yes
Total Requested300100%
Total Not Requested00%

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