Cadillac STS Cadillac STS 2006 Audi A4 / S4 Audi A4 / S4 2015
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Cadillac STS vs. Audi A4 / S4 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 A4 / S4 Invoice Comparison

Lowest Total Price: $54,975

Audi A4 / S4 S4 3.0T   
Difference: $22,115

Lowest Total Invoice: $51,194

Audi A4 / S4 S4 3.0T   
Difference: $20,326

Calculate Payments

  Down Payment Interest Rate Term
Model Year20062015
ModelSTSA4 / S4
TrimSTS-VS4 3.0T
Body4dr Sedan4dr Sedan
Base Price $73,070 $48,400
Base Invoice $67,704 $45,012
Sunroof 1,200  
Technology Package   2,900
Metallic paint (extra cost)   550
6-speed manual   0
Wood trim, alternative type   1,100
Active rear differential   1,100
Sunroof 996  
Technology Package   2,698
Metallic paint (extra cost)   511
6-speed manual   0
Wood trim, alternative type   1,024
Active rear differential   1,024
Options (change) 1,200 5,650
Options (change) 996 5,257
Destination 720 925
Gas Tax 2,100 0
Total Price $77,090 $54,975
Total Invoice $71,520 $51,194

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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

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Cadillac STS dealer quotes or Audi A4 / S4 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: Cadillac STS vs. Audi A4 / S4

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4 3.0T
TrueDelta Adjusted Price Difference: $21,765
TrueDelta Adjusted Invoice Difference: $20,001
Model Year20062015
ModelSTSA4 / S4
TrimSTS-VS4 3.0T
Body4dr Sedan4dr Sedan
Engine469hp V8333hp V6
TransmissionT6M6
DrivetrainRWDAWD
EPA Fuel Economy (city/highway)14/20 MPG17/26 MPG
Audio (watts, speakers)300, 15180, 10
Tire (rear if not all the same)255/45-18245/40-18
Total Price$77,090$54,975
Adjustments for Features-3500
Feature-Adjusted Total Price$76,740$54,975
Total Invoice$71,520$51,194
Adjustments for Features-3250
Feature-Adjusted Total Invoice$71,195$51,194

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Features Comparison: Cadillac STS vs. Audi A4 / S4

Model Year20062015
ModelSTSA4 / S4
TrimSTS-VS4 3.0T
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
6-speed manual $150
RWD$0 
AWD $1700
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
Blind spot warning system $200
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 
Body kit $0
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 
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 
Wood trim, alternative type $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$5,915$5,565
Value of Feature Adjustments$350$0
Value of Feature Adjustments-3250

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

Specifications Comparison: Cadillac STS vs. Audi A4 / S4

Model Year20062015
ModelSTSA4 / S4
Body4dr Sedan4dr Sedan
Wheelbase116.4 in110.6 in
Length196.3 in185.1 in
Width72.6 in71.9 in
Height57.6 in56.2 in
Curb Weight4,233 lb.3,847 lb.
Fuel Capacity17.0 gal.16.9 gal.
Row 1 Headroom38.7 in40.0 in
Row 1 Shoulder Room58.6 in55.5 in
Row 1 Hip Room54.6 in0.0 in
Row 1 Legroom42.6 in41.3 in
Row 2 Headroom37.9 in37.5 in
Row 2 Shoulder Room57.4 in54.3 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in35.2 in
Cargo Volume13.8 ft312.4 ft3

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

Option Package Details
Audi A4 / S4 S4 3.0T

Technology Package
FeatureValueRequested?
Obstacle detection, rear250Yes
Rearview camera200No
Blind spot warning system200No
In-vehicle Internet150No
Wi-Fi hotspot50No
Media drive15No
Traffic + travel information25No
Bluetooth audio streaming25No
Navigation system600Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
HD radio50No
Total Requested95057%
Total Not Requested71543%

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See TrueDelta's information for all Sedans
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