Audi A6 / S6 Audi A6 / S6 2014 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: $87,480

Audi A6 / S6 S6 4.0 TFSI   
Difference: $1,520

Lowest Total Invoice: $81,423

Audi A6 / S6 S6 4.0 TFSI   
Difference: $3,164

Calculate Payments

  Down Payment Interest Rate Term
Model Year20142017
ModelA6 / S6CT6
TrimS6 4.0 TFSIPlatinum
Body4dr Sedan4dr Sedan
Base Price $73,400 $83,795
Base Invoice $68,262 $79,605
Cold Weather Package 500  
Comfort Seating Package 2,000  
Driver Assistance Package 2,800  
Innovation Package 2,800  
Metallic paint (extra cost) 500  
LED headlights 1,400  
Cargo mat 185 150
Synthetic suede headliner 3,000  
Cargo net   60
3.0L V6   4,000
Cold Weather Package 467  
Comfort Seating Package 1,860  
Driver Assistance Package 2,604  
Innovation Package 2,604  
Metallic paint (extra cost) 467  
LED headlights 1,302  
Cargo mat 172 134
Synthetic suede headliner 2,790  
Cargo net   53
3.0L V6   3,800
Options (change) 13,185 4,210
Options (change) 12,266 3,987
Destination 895 995
Total Price $87,480 $89,000
Total Invoice $81,423 $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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Request free, no-obligation Audi A6 / S6 dealer quotes or Cadillac CT6 dealer quotes from dealers using our car quote form.

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

Lowest Adjusted Price and Invoice: Cadillac CT6 Platinum
TrueDelta Adjusted Price Difference: $3,055
TrueDelta Adjusted Invoice Difference: $1,184
Model Year20142017
ModelA6 / S6CT6
TrimS6 4.0 TFSIPlatinum
Body4dr Sedan4dr Sedan
Engine420hp V8404hp V6
TransmissionS7T8
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)17/27 MPG18/26 MPG
Audio (watts, speakers)630, 14?, 34
Tire (rear if not all the same)255/40-19245/40-20
Total Price$87,480$89,000
Adjustments for Features0-4,575
Feature-Adjusted Total Price$87,480$84,425
Total Invoice$81,423$84,587
Adjustments for Features0-4,348
Feature-Adjusted Total Invoice$81,423$80,239

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Features Comparison: Audi A6 / S6 vs. Cadillac CT6

Model Year20142017
ModelA6 / S6CT6
TrimS6 4.0 TFSIPlatinum
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
7-speed automated manual$1200 
8-speed manually-shiftable automatic $1300
AWD$1700$1700
Accessories 
AC power outlet $100
Active noise reduction $0
Electronic engine sound enhancement $0
Hands-free trunk or liftgate $100
Power trunk closer $350
Remote app $25
Remote start $150
Semi-automated parking system $500
Sunshades, second row $125
Brakes, Airbags, and Other Safety 
Automatic braking, high-speed or partial $200
Backup collision intervention $150
Collision preparation system, rear$100 
Cross-traffic warning, rear $100
Following distance indicator $25
Lane departure prevention$150 
Lane keeping assist $400
Pedestrian detection $50
Pedestrian detection, night$50 
Rollover sensor$50 
Surround view video recorder $50
Vehicle health reports $0
Wide-view front camera$150 
Wide-view rear camera$0 
Climate Control 
Automatic air recirculation$100 
Heated windshield washer nozzles$15 
Ionizing air filtration $50
Residual heat$50 
Drivetrain 
Active rear differential$500 
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Active grille shutters $0
Body kit$0 
Laminated front side windows $200
Panoramic sunroof $1200
Sunroof$900 
Infotainment 
4G LTE connectivity $0
Android Auto support $100
App support $0
Apple CarPlay support $100
CD player$125 
DVD-compatible player$0 
Entertainment system with dual headrest screens $1200
Handwriting recognition$200 
HDMI port $25
In-vehicle Internet$150 
iPod integration$100 
Media drive$15 
MP3-compatible player$50 
SMS text-to-speech reader $25
Streaming video device $30
Streaming video support $25
Telematics service, such as OnStar, with navigation $225
Traffic + travel information$25 
Traffic information $25
USB port $25
Voice control for external devices $0
Wireless charging station $75
Instruments, Lights, and Mirrors 
Approach detection $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Compass$0 
Fog light, rear$100 
Large color reconfigurable instrument cluster display $250
Mirror tilt-down in reverse$25 
Rear camera mirror $200
Steering-linked headlights$150 
Seats and Interior Trim 
Cooled or ventilated second row seats $200
Folding second row seats$300 
Massage, second row seats $150
Metal pedals$75 
Power 4-way lumbar adjuster, second row seats $225
Power recliner, second row seats $150
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Power thigh bolsters, driver seat$100 
Power thigh bolsters, 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, leather $1000
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Rear wheel steering $1500
Sport suspension (upgrade)$0 
Total Value of Features$8,455$13,030
Value of Feature Adjustments$0$4,575
Value of Feature Adjustments0-4,348

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Specifications Comparison: Audi A6 / S6 vs. Cadillac CT6

Model Year20142017
ModelA6 / S6CT6
Body4dr Sedan4dr Sedan
Wheelbase114.7 in122.4 in
Length193.9 in204.0 in
Width73.8 in74.0 in
Height57.8 in57.9 in
Curb Weight4,398 lb.4,085 lb.
Fuel Capacity19.8 gal.19.5 gal.
Row 1 Headroom37.2 in40.1 in
Row 1 Shoulder Room57.5 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 Room56.3 in56.1 in
Row 2 Hip Room0.0 in53.4 in
Row 2 Legroom37.4 in40.4 in
Cargo Volume14.1 ft315.3 ft3

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Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Heated steering wheel100Yes
Total Requested300100%
Total Not Requested00%
Comfort Seating Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Power thigh support adjuster, driver seat100Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh support adjuster, passenger seat100Yes
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Memory system, passenger seat150Yes
Massage, driver seat100Yes
Massage, passenger seat100Yes
Total Requested85068%
Total Not Requested40032%
Driver Assistance Package
FeatureValueRequested?
Radar- or camera-based collision preparation system0Yes
Lane departure warning system200Yes
Adaptive cruise control, all-speed700Yes
Lane departure prevention system150Yes
Around view cameras300Yes
Automatic braking, low-speed200Yes
Forward collision alert200Yes
Wide-view front camera150No
Wide-view rear camera0No
Total Requested175092%
Total Not Requested1508%
Innovation Package
FeatureValueRequested?
Night vision1750Yes
Head-up display (HUD)350Yes
Pedestrian detection, night50No
Total Requested210098%
Total Not Requested502%

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