Audi A4 / S4 Audi A4 / S4 2013 Cadillac STS Cadillac STS 2006
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Audi A4 / S4 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 A4 / S4 vs. Cadillac STS Invoice Comparison

Lowest Total Price: $53,820

Audi A4 / S4 S4 3.0T   
Difference: $23,270

Lowest Total Invoice: $50,117

Audi A4 / S4 S4 3.0T   
Difference: $21,403

Calculate Payments

  Down Payment Interest Rate Term
Model Year20132006
ModelA4 / S4STS
TrimS4 3.0TSTS-V
Body4dr Sedan4dr Sedan
Base Price $47,600 $73,070
Base Invoice $44,268 $67,704
Navigation Package 3,050  
Metallic paint (extra cost) 475  
Proximity key 550  
6-speed manual 0  
Active rear differential 1,250  
Sunroof   1,200
Navigation Package 2,837  
Metallic paint (extra cost) 443  
Proximity key 511  
6-speed manual 0  
Active rear differential 1,163  
Sunroof   996
Options (change) 5,325 1,200
Options (change) 4,954 996
Destination 895 720
Gas Tax 0 2,100
Total Price $53,820 $77,090
Total Invoice $50,117 $71,520

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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 A4 / S4 dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

TrueDelta Value Comparison: Audi A4 / S4 vs. Cadillac STS

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4 3.0T
TrueDelta Adjusted Price Difference: $22,520
TrueDelta Adjusted Invoice Difference: $20,707
Model Year20132006
ModelA4 / S4STS
TrimS4 3.0TSTS-V
Body4dr Sedan4dr Sedan
Engine333hp V6469hp V8
TransmissionM6T6
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)17/26 MPG14/20 MPG
Audio (watts, speakers)180, 10300, 15
Tire (rear if not all the same)245/40-18255/45-18
Total Price$53,820$77,090
Adjustments for Features0-750
Feature-Adjusted Total Price$53,820$76,340
Total Invoice$50,117$71,520
Adjustments for Features0-696
Feature-Adjusted Total Invoice$50,117$70,824

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Features Comparison: Audi A4 / S4 vs. Cadillac STS

Model Year20132006
ModelA4 / S4STS
TrimS4 3.0TSTS-V
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150 
6-speed manually-shiftable automatic $1100
AWD$1700 
RWD $0
Accessories 
Heated steering wheel $100
Remote start $150
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0 
Rearview camera$200 
Tires, run-flat $150
Cargo Management 
Air-conditioned storage compartment$50 
Cargo net $40
Rear seat pass-through $100
Climate Control 
Rear air vents with automatic controls$250 
Rear air vents with manual controls $150
Drivetrain 
Active rear differential$500 
Limited-slip rear differential $300
Exterior 
Laminated front side windows $200
Rear spoiler $200
Infotainment 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
HD radio$50 
In-vehicle Internet$150 
iPod integration$100 
Media drive$15 
MP3-compatible player$50 
Satellite radio$200 
Surround sound $250
Telematics service, such as OnStar $200
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 
Headlight washers $50
Seats and Interior Trim 
Aluminum trim$100 
Folding second row seats$300 
Heated second row seats $200
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Upholstered instrument panel, leather $1000
Wood trim $300
Suspension, Wheels, and Tires 
Alloy wheels$350 
Auto-leveling rear shocks $200
Electronic systems calibration selector$200 
Performance steering system (optional) $0
Polished alloy wheels $350
Total Value of Features$5,165$5,915
Value of Feature Adjustments$0$750
Value of Feature Adjustments0-696

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See a complete comparison of Audi A4 / S4 vs. Cadillac STS features.

Specifications Comparison: Audi A4 / S4 vs. Cadillac STS

Model Year20132006
ModelA4 / S4STS
Body4dr Sedan4dr Sedan
Wheelbase110.6 in116.4 in
Length185.1 in196.3 in
Width71.9 in72.6 in
Height56.2 in57.6 in
Curb Weight3,847 lb.4,233 lb.
Fuel Capacity16.9 gal.17.0 gal.
Row 1 Headroom40.0 in38.7 in
Row 1 Shoulder Room55.5 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.6 in
Row 2 Headroom37.5 in37.9 in
Row 2 Shoulder Room54.3 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom35.2 in38.3 in
Cargo Volume12.4 ft313.8 ft3

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See a complete comparison of Audi A4 / S4 vs. Cadillac STS specs.

Option Package Details
Audi A4 / S4 S4 3.0T

Navigation Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Rearview camera200No
DVD-compatible player0Yes
Voice control for nav and audio100Yes
HD radio50No
Media drive, large15No
Traffic + travel information25No
In-vehicle Internet150No
Bluetooth audio streaming25No
Wi-Fi hotspot50No
Total Requested95065%
Total Not Requested51535%

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