Cadillac STS Cadillac STS 2010 Audi A6 Audi A6 2006
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Cadillac STS vs. Audi A6 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 Invoice Comparison

Lowest Total Price: $58,905

Cadillac STS V6 Luxury   
Difference: $2,685

Lowest Total Invoice: $55,211

Cadillac STS V6 Luxury   
Difference: $1,529

Calculate Payments

  Down Payment Interest Rate Term
Model Year20102006
ModelSTSA6
TrimV6 Luxury4.2
Body4dr Sedan4dr Sedan
Base Price $50,385 $53,770
Base Invoice $47,614 $49,559
Luxury Level Two Package 3,950  
Temporary spare tire 250  
Sunroof 1,200  
AWD 1,900  
Performance braking system (optional) 395  
Cold Weather Package   400
Technology Package   3,800
Navigation system   1,800
Heated steering wheel   200
Polished alloy wheels   900
Luxury Level Two Package 3,476  
Temporary spare tire 220  
Sunroof 1,056  
AWD 1,672  
Performance braking system (optional) 348  
Cold Weather Package   364
Technology Package   3,458
Navigation system   1,638
Heated steering wheel   182
Polished alloy wheels   819
Options (change) 7,695 7,100
Options (change) 6,772 6,461
Destination 825 720
Total Price $58,905 $61,590
Total Invoice $55,211 $56,740

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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 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Audi A6

Lowest Adjusted Price and Invoice: Cadillac STS V6 Luxury
TrueDelta Adjusted Price Difference: $2,970
TrueDelta Adjusted Invoice Difference: $1,796
Model Year20102006
ModelSTSA6
TrimV6 Luxury4.2
Body4dr Sedan4dr Sedan
Engine302hp V6335hp V8
TransmissionT6T6
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)17/26 MPG17/23 MPG
Audio (watts, speakers)300, 15330, 13
Tire (rear if not all the same)235/50-17245/40-18
Total Price$58,905$61,590
Adjustments for Features-2850
Feature-Adjusted Total Price$58,620$61,590
Total Invoice$55,211$56,740
Adjustments for Features-2670
Feature-Adjusted Total Invoice$54,944$56,740

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Features Comparison: Cadillac STS vs. Audi A6

Model Year20102006
ModelSTSA6
TrimV6 Luxury4.2
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100
AWD$1700$1700
Accessories 
Remote start$150 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Cargo Management 
Ski sack $50
Storage compartment under front seat(s) $50
Climate Control 
Heated windshield washer nozzles $15
Rain-sensing wipers $175
Rear air vents $100
Rear air vents with manual controls$150 
Residual heat $50
Variable intermittent wipers$75 
Exterior 
Bodyside moldings $75
Laminated front side windows$200 
Infotainment 
CD changer, in-dash$325 
CD changer, remote $200
DVD-compatible player$0 
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
Fog light, rear $100
Headlight washers$50 
Mirror tilt-down in reverse $25
Power-folding mirrors $50
Steering-linked headlights $150
Seats and Interior Trim 
Cooled or ventilated front seats$300 
Folding second row seats $300
Leather-wrapped steering wheel $150
Wood/leather-wrapped steering wheel$150 
Total Value of Features$4,650$4,365
Value of Feature Adjustments$285$0
Value of Feature Adjustments-2670

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

Specifications Comparison: Cadillac STS vs. Audi A6

Model Year20102006
ModelSTSA6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in111.9 in
Length196.7 in193.5 in
Width72.6 in73.1 in
Height57.6 in57.5 in
Curb Weight4,125 lb.4,145 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 a complete comparison of Cadillac STS vs. Audi A6 specs.

Option Package Details
Cadillac STS V6 Luxury

Luxury Level Two Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested145070%
Total Not Requested62530%

Option Package Details
Audi A6 4.2

Navigation system
FeatureValueRequested?
Navigation system600Yes
Trip computer150Yes
Outside temperature display50Yes
Total Requested800100%
Total Not Requested00%
Polished alloy wheels
FeatureValueRequested?
Polished alloy wheels350Yes
245/40HR18 tires400No
Total Requested35047%
Total Not Requested40053%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Ski sack50No
Total Requested30086%
Total Not Requested5014%
Technology Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested1200100%
Total Not Requested00%

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