Audi A4 / S4 Audi A4 / S4 2006 Cadillac CT6 Cadillac CT6 2017

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Audi A4 / S4 vs. Cadillac CT6 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 CT6 Invoice Comparison

Lowest Total Price: $56,920

Audi A4 / S4 S4   
Difference: $12,135

Lowest Total Invoice: $52,551

Audi A4 / S4 S4   
Difference: $12,900

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006201720172017
ModelA4 / S4CT6CT6CT6
TrimS4LuxuryPremium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $46,400 $58,695 $63,895 $83,795
Base Invoice $42,758 $55,760 $60,700 $79,605
Premium Package 2,900      
Cold Weather Package 400      
Metallic paint (extra cost) 450 595 595  
Obstacle detection, rear 350      
Navigation system 1,950      
Bluetooth cell phone link 500      
Bose 215W 10 speakers 1,000      
Tire-pressure monitor 250      
Carbon fiber trim 300 0 0  
Enhanced Vision and Comfort Package   2,025    
3.0L V6   6,000 4,000 4,000
CD player, remote   250 250  
Rear spoiler   495 495 495
Cargo net       60
Premium Package 2,639      
Cold Weather Package 364      
Metallic paint (extra cost) 410 530 530  
Obstacle detection, rear 319      
Navigation system 1,775      
Bluetooth cell phone link 455      
Bose 215W 10 speakers 910      
Tire-pressure monitor 228      
Carbon fiber trim 273 0 0  
Enhanced Vision and Comfort Package   1,802    
3.0L V6   5,700 3,800 3,800
CD player, remote   223 223  
Rear spoiler   441 441 441
Cargo net       53
Options (change) 8,100 9,365 5,340 4,555
Options (change) 7,373 8,696 4,994 4,294
Destination 720 995 995 995
Gas Tax 1,700 0 0 0
Total Price $56,920 $69,055 $70,230 $89,345
Total Invoice $52,551 $65,451 $66,689 $84,894

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While we strive for accuracy, the site is not error-free, and prices can change at any time.

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TrueDelta Value Comparison: Audi A4 / S4 vs. Cadillac CT6

Lowest Adjusted Price and Invoice: Audi A4 / S4 S4
TrueDelta Adjusted Price Difference: $4,190
TrueDelta Adjusted Invoice Difference: $5,370
Model Year2006201720172017
ModelA4 / S4CT6CT6CT6
TrimS4LuxuryPremium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine340hp V8404hp V6404hp V6404hp V6
TransmissionM6T8T8T8
DrivetrainAWDAWDAWDAWD
EPA Fuel Economy (city/highway)15/21 MPG18/26 MPG18/26 MPG18/26 MPG
Audio (watts, speakers)215, 10?, 10?, 10?, 34
Tire (rear if not all the same)235/40-18245/45-19245/45-19245/40-20
Total Price$56,920$69,055$70,230$89,345
Adjustments for Features0-7,945-8,045-17,115
Feature-Adjusted Total Price$56,920$61,110$62,185$72,230
Cost Above Minimum$0$0$1,075$11,120
Total Invoice$52,551$65,451$66,689$84,894
Adjustments for Features0-7,530-7,639-16,262
Feature-Adjusted Total Invoice$52,551$57,921$59,050$68,632
Cost Above Minimum$0$0$1,129$10,711

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Features Comparison: Audi A4 / S4 vs. Cadillac CT6

Model Year2006201720172017
ModelA4 / S4CT6CT6CT6
TrimS4LuxuryPremium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manual$150   
8-speed manually-shiftable automatic $1300$1300$1300
AWD$1700$1700$1700$1700
Accessories 
AC power outlet $100$100$100
Active noise reduction $0$0$0
Adaptive cruise control, all-speed   $850
Cruise control$150$150$150 
Electronic engine sound enhancement   $0
Hands-free trunk or liftgate $100$100$100
Heated steering wheel $100$100$100
Power trunk closer $350$350$350
Proximity key $250$250$250
Remote app $25$25$25
Remote start $150$150$150
Semi-automated parking system $500$500$500
Sunshades, second row $125$125$125
Tilt/telescoping steering wheel, manual$250   
Tilt/telescoping steering wheel, power $350$350$350
Brakes, Airbags, and Other Safety 
Around view cameras $500$500$500
Automatic braking, high-speed or partial   $200
Automatic braking, low-speed $200$200$200
Backup collision intervention   $150
Blind spot warning system $200$200$200
Cross-traffic warning, rear $100$100$100
Following distance indicator $25$25$25
Forward collision warning $200$200$200
Knee airbag, driver $75$75$75
Knee airbag, passenger $75$75$75
Lane departure warning $200$200$200
Lane keeping assist $400$400$400
Night vision   $1750
Obstacle detection, front $150$150$150
Pedestrian detection $50$50$50
Radar- or camera-based collision preparation system $0$0$0
Surround view video recorder $50$50$50
Vehicle health reports $0$0$0
Cargo Management 
Cargo net$40  $40
Ski sack$50   
Climate Control 
Heated windshield washer nozzles$15   
Ionizing air filtration   $50
Rear air vents $100$100 
Rear air vents with automatic controls   $250
Rear dual-zone climate control   $125
Engine / Motor 
Automatic start / stop $150$150$150
Exterior 
Active grille shutters $0$0$0
Bodyside moldings$75   
Laminated front side windows $200$200$200
Panoramic sunroof $1200$1200$1200
Sunroof$900   
Infotainment 
4G LTE connectivity $0$0$0
Android Auto support $100$100$100
App support $0$0$0
Apple CarPlay support $100$100$100
Aux input $50$50$50
Bluetooth audio streaming $25$25$25
CD changer, remote$200   
CD player, remote $100$100 
Entertainment system with dual headrest screens   $1200
HD radio $50$50$50
HDMI port   $25
MP3-compatible player $50$50 
SMS text-to-speech reader $25$25$25
Streaming video device   $30
Streaming video support   $25
Surround sound $250$250$250
Telematics service, such as OnStar, with navigation $225$225$225
Traffic information $25$25$25
Voice control for external devices $0$0$0
Voice control for nav and audio $100$100$100
Wi-Fi hotspot $50$50$50
Wireless charging station $75$75$75
Instruments, Lights, and Mirrors 
Approach detection $25$25$25
Auto-dimming headlights $200$200$200
Auto-dimming passenger-side mirror$75   
Compass$0   
Cornering lights $50$50$50
Fog light, rear$100   
Fog lights$125   
Head-up display (HUD)  $350$350
Headlight washers$50   
Large color reconfigurable instrument cluster display  $250$250
LED headlights $1000$1000$1000
Rear camera mirror $200$200$200
Steering-linked headlights$150   
Xenon HID headlights$500   
Seats and Interior Trim 
Carbon fiber trim$200$200$200 
Cooled or ventilated front seats $300 $300
Cooled or ventilated second row seats   $200
Folding second row seats$300   
Heated second row seats$200$200 $200
Illuminated door sill trim plates $200$200$200
Manual thigh support length adjuster, driver seat$50   
Massage, driver seat   $100
Massage, passenger seat   $100
Massage, second row seats   $150
Memory system, passenger seat $150$150$150
Power 4-way lumbar adjuster, second row seats   $225
Power recliner, second row seats   $150
Power thigh support length adjuster, driver seat   $100
Power thigh support length adjuster, passenger seat   $100
Power tilt adjuster, second row seats   $150
Power upper seatback recliner, driver seat   $100
Power upper seatback recliner, passenger seat   $100
Upholstered instrument panel $300$300 
Upholstered instrument panel, leather   $1000
Wood trim   $300
Suspension, Wheels, and Tires 
Adaptive dampers - electrical   $500
Rear wheel steering   $1500
Ultra-sport suspension (upgrade)$0   
Transmission 
Steering-wheel-mounted transmission controls $100$100$100
Total Value of Features$5,280$13,225$13,325$22,395
Value of Feature Adjustments$0$7,945$8,045$17,115
Value of Feature Adjustments0-7,530-7,639-16,262

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Specifications Comparison: Audi A4 / S4 vs. Cadillac CT6

Model Year20062017
ModelA4 / S4CT6
Body4dr Sedan4dr Sedan
Wheelbase104.3 in122.4 in
Length180.6 in204.0 in
Width69.8 in74.0 in
Height56.2 in57.9 in
Curb Weight3,825 lb.4,085 lb.
Fuel Capacity16.6 gal.19.5 gal.
Row 1 Headroom38.4 in40.1 in
Row 1 Shoulder Room55.1 in58.3 in
Row 1 Hip Room0.0 in55.8 in
Row 1 Legroom41.3 in42.3 in
Row 2 Headroom37.2 in38.0 in
Row 2 Shoulder Room53.4 in56.1 in
Row 2 Hip Room0.0 in53.4 in
Row 2 Legroom34.3 in40.4 in
Cargo Volume13.4 ft315.3 ft3

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Option Package Details
Audi A4 / S4 S4

Premium Package
FeatureValueRequested?
Heated front seats200Yes
Sunroof900Yes
Universal garage door opener100Yes
Rain-sensing wipers100Yes
Automatic headlights125Yes
Steering-linked headlights150No
Alloy wheels, optional design0No
Memory system, driver seat200Yes
Auto-dimming rearview mirror150Yes
Auto-dimming driver-side mirror75Yes
Compass0No
Power-folding mirrors50Yes
Auto-dimming passenger-side mirror75No
Total Requested190089%
Total Not Requested22511%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Ski sack50No
Total Requested30086%
Total Not Requested5014%

Option Package Details
Cadillac CT6 Luxury

CD player, remote
FeatureValueRequested?
CD player, remote100Yes
MP3-compatible player50No
Total Requested10067%
Total Not Requested5033%
Enhanced Vision and Comfort Package
FeatureValueRequested?
Heated second row seats200Yes
Cooled or ventilated front seats300No
Panoramic sunroof1200No
Rear camera mirror200No
Total Requested20011%
Total Not Requested170089%
turbocharged
3.0L V6
DOHC-4v
404 hp@5500
400 lb-ft@2500
FeatureValueRequested?
turbocharged
3.0L V6
DOHC-4v
404 hp@5500
400 lb-ft@2500
1000Yes
AWD0Yes
245/45HR19 tires400No
Total Requested100071%
Total Not Requested40029%

Option Package Details
Cadillac CT6 Premium Luxury

CD player, remote
FeatureValueRequested?
CD player, remote100Yes
MP3-compatible player50No
Total Requested10067%
Total Not Requested5033%

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