Audi A6 / S6 Audi A6 / S6 2008 Cadillac CT6 Cadillac CT6 2017

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Audi A6 / S6 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 A6 / S6 vs. Cadillac CT6 Invoice Comparison

Lowest Total Price: $69,885

Cadillac CT6 Premium Luxury   
Difference: $12,605

Lowest Total Invoice: $66,382

Cadillac CT6 Premium Luxury   
Difference: $10,436

Calculate Payments

  Down Payment Interest Rate Term
Model Year200820172017
ModelA6 / S6CT6CT6
TrimS6Premium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $72,350 $63,895 $83,795
Base Invoice $67,285 $60,700 $79,605
Technology Package 3,350    
Laminated front side windows 900    
Lane departure warning 900    
iPod integration 290    
Carbon fiber trim 400 0  
Heated second row seats 225    
Adaptive cruise control 2,000    
CD player, remote   250  
Metallic paint (extra cost)   595  
Cargo mat   150 150
3.0L V6   4,000 4,000
Cargo net     60
Technology Package 3,115    
Laminated front side windows 838    
Lane departure warning 838    
iPod integration 225    
Carbon fiber trim 373 0  
Heated second row seats 209    
Adaptive cruise control 1,860    
CD player, remote   223  
Metallic paint (extra cost)   530  
Cargo mat   134 134
3.0L V6   3,800 3,800
Cargo net     53
Options (change) 8,065 4,995 4,210
Options (change) 7,458 4,687 3,987
Destination 775 995 995
Gas Tax 1,300 0 0
Total Price $82,490 $69,885 $89,000
Total Invoice $76,818 $66,382 $84,587

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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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TrueDelta Value Comparison: Audi A6 / S6 vs. Cadillac CT6

Lowest Adjusted Price and Invoice: Cadillac CT6 Premium Luxury
TrueDelta Adjusted Price Difference: $16,700
TrueDelta Adjusted Invoice Difference: $14,326
Model Year200820172017
ModelA6 / S6CT6CT6
TrimS6Premium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan
Engine435hp V10404hp V6404hp V6
TransmissionT6T8T8
DrivetrainAWDAWDAWD
EPA Fuel Economy (city/highway)14/19 MPG18/26 MPG18/26 MPG
Audio (watts, speakers)330, 13?, 10?, 34
Tire (rear if not all the same)265/35-19245/45-19245/40-20
Total Price$82,490$69,885$89,000
Adjustments for Features0-4,095-14,065
Feature-Adjusted Total Price$82,490$65,790$74,935
Cost Above Minimum$0$0$9,145
Total Invoice$76,818$66,382$84,587
Adjustments for Features0-3,890-13,368
Feature-Adjusted Total Invoice$76,818$62,492$71,219
Cost Above Minimum$0$0$8,727

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Features Comparison: Audi A6 / S6 vs. Cadillac CT6

Model Year200820172017
ModelA6 / S6CT6CT6
TrimS6Premium LuxuryPlatinum
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100  
8-speed manually-shiftable automatic $1300$1300
AWD$1700$1700$1700
Accessories 
AC power outlet $100$100
Active noise reduction $0$0
Adaptive cruise control$600  
Adaptive cruise control, all-speed  $850
Cruise control $150 
Electronic engine sound enhancement  $0
Hands-free trunk or liftgate $100$100
Heated steering wheel $100$100
Power trunk closer $350$350
Remote app $25$25
Remote start $150$150
Semi-automated parking system $500$500
Sunshades, second row $125$125
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0  
Around view cameras $500$500
Automatic braking, high-speed or partial  $200
Automatic braking, low-speed $200$200
Backup collision intervention  $150
Blind spot warning system $200$200
Cross-traffic warning, rear $100$100
Following distance indicator $25$25
Forward collision warning $200$200
Full-size spare tire$225  
Knee airbag, driver $75$75
Knee airbag, passenger $75$75
Lane keeping assist $400$400
Night vision  $1750
Obstacle detection, front $150$150
Pedestrian detection $50$50
Radar- or camera-based collision preparation system $0$0
Rearview camera$200  
Surround view video recorder $50$50
Temporary spare tire $150$150
Vehicle health reports $0$0
Cargo Management 
Cargo net$40 $40
Ski sack$50  
Storage compartment under front seat(s)$50  
Climate Control 
Automatic air recirculation$100  
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
Residual heat$50  
Engine / Motor 
Automatic start / stop $150$150
Exterior 
Active grille shutters $0$0
Bodyside cladding$350  
Panoramic sunroof $1200$1200
Sunroof$900  
Infotainment 
4G LTE connectivity $0$0
Android Auto support $100$100
App support $0$0
Apple CarPlay support $100$100
Aux input $50$50
Bluetooth audio streaming $25$25
CD changer, remote$200  
CD player, remote $100 
Entertainment system with dual headrest screens  $1200
HD radio $50$50
HDMI port  $25
iPod integration$100  
MP3-compatible player$50$50 
SMS text-to-speech reader $25$25
Streaming video device  $30
Streaming video support  $25
Telematics service, such as OnStar, with navigation $225$225
Traffic information $25$25
USB port $25$25
Voice control for external devices $0$0
Wi-Fi hotspot $50$50
Wireless charging station $75$75
Instruments, Lights, and Mirrors 
Approach detection $25$25
Auto-dimming headlights $200$200
Auto-dimming passenger-side mirror$75  
Compass$0  
Cornering lights $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
Mirror tilt-down in reverse$25  
Rear camera mirror $200$200
Steering-linked headlights$150  
Xenon HID headlights$500  
Seats and Interior Trim 
Carbon fiber trim$200$200 
Cooled or ventilated front seats  $300
Cooled or ventilated second row seats  $200
Door sill trim plates$100  
Folding second row seats$300  
Heated second row seats$200 $200
Illuminated door sill trim plates $200$200
Leather door panel trim$250 $250
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
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
Synthetic suede headliner  $650
Upholstered instrument panel $300 
Upholstered instrument panel, leather  $1000
Wood trim  $300
Suspension, Wheels, and Tires 
Adaptive dampers - electrical  $500
Rear wheel steering  $1500
Sport suspension (upgrade)$0  
Total Value of Features$7,955$12,050$22,020
Value of Feature Adjustments$0$4,095$14,065
Value of Feature Adjustments0-3,890-13,368

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Specifications Comparison: Audi A6 / S6 vs. Cadillac CT6

Model Year20082017
ModelA6 / S6CT6
Body4dr Sedan4dr Sedan
Wheelbase111.9 in122.4 in
Length193.5 in204.0 in
Width73.1 in74.0 in
Height57.5 in57.9 in
Curb Weight4,486 lb.4,085 lb.
Fuel Capacity21.1 gal.19.5 gal.
Row 1 Headroom38.7 in40.1 in
Row 1 Shoulder Room57.1 in58.3 in
Row 1 Hip Room0.0 in55.8 in
Row 1 Legroom41.3 in42.3 in
Row 2 Headroom37.8 in38.0 in
Row 2 Shoulder Room55.9 in56.1 in
Row 2 Hip Room0.0 in53.4 in
Row 2 Legroom36.9 in40.4 in
Cargo Volume15.9 ft315.3 ft3

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Option Package Details
Audi A6 / S6 S6

Technology Package
FeatureValueRequested?
Navigation system600Yes
Obstacle detection, rear250Yes
Rearview camera200Yes
Proximity key250Yes
Voice control for nav and audio100Yes
Total Requested1400100%
Total Not Requested00%

Option Package Details
Cadillac CT6 Premium Luxury

CD player, remote
FeatureValueRequested?
CD player, remote100Yes
MP3-compatible player50Yes
Total Requested150100%
Total Not Requested00%

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