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

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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: $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 Year20102009
ModelA6 / S6STS
TrimS6STS-V
Body4dr Sedan4dr Sedan
Base Price $76,100 $80,160
Base Invoice $70,774 $73,448
Blind spot warning system 500  
Sunroof   1,200
Blind spot warning system 466  
Sunroof   996
Options (change) 500 1,200
Options (change) 466 996
Destination 825 775
Gas Tax 1,300 2,100
Total Price $78,725 $84,235
Total Invoice $73,365 $77,319

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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
TrueDelta Adjusted Price Difference: $6,100
TrueDelta Adjusted Invoice Difference: $4,504
Model Year20102009
ModelA6 / S6STS
TrimS6STS-V
Body4dr Sedan4dr Sedan
Engine435hp V10469hp V8
TransmissionT6T6
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)14/19 MPG13/19 MPG
Audio (watts, speakers)255, 9300, 15
Tire (rear if not all the same)265/35-19255/45-18
Total Price$78,725$84,235
Adjustments for Features-5900
Feature-Adjusted Total Price$78,135$84,235
Total Invoice$73,365$77,319
Adjustments for Features-5500
Feature-Adjusted Total Invoice$72,815$77,319

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Features Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20102009
ModelA6 / S6STS
TrimS6STS-V
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
AWD$1700 
RWD $0
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$5,715$5,125
Value of Feature Adjustments$590$0
Value of Feature Adjustments-5500

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Specifications Comparison: Audi A6 / S6 vs. Cadillac STS

Model Year20102009
ModelA6 / S6STS
Body4dr Sedan4dr Sedan
Wheelbase111.9 in116.4 in
Length193.5 in196.7 in
Width73.0 in72.6 in
Height57.5 in57.6 in
Curb Weight4,519 lb.4,233 lb.
Fuel Capacity21.1 gal.17.0 gal.
Row 1 Headroom38.7 in38.7 in
Row 1 Shoulder Room57.1 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 Room55.9 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom36.9 in38.3 in
Cargo Volume15.9 ft313.8 ft3

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