Cadillac CT6 Cadillac CT6 2018 Audi A8 / S8 Audi A8 / S8 2015

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Cadillac CT6 vs. Audi A8 / S8 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 CT6 vs. Audi A8 / S8 Invoice Comparison

Lowest Total Price: $89,350

Cadillac CT6 Platinum   
Difference: $20,425

Lowest Total Invoice: $84,928

Cadillac CT6 Platinum   
Difference: $17,230

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182015
ModelCT6A8 / S8
TrimPlatinumA8 4.0T
Body4dr Sedan4dr Sedan
Base Price $84,295 $86,400
Base Invoice $80,080 $80,352
Cargo net 60  
3.0L V6 4,000  
Warm Weather Package   1,700
Audi Design Selection Package   8,500
Cold Weather Package   750
Premium Package   3,950
Driver Assistance Package   2,250
Entertainment system with dual headrest screens   3,000
Night vision   2,300
Cargo net 53  
3.0L V6 3,800  
Warm Weather Package   1,582
Audi Design Selection Package   7,907
Cold Weather Package   697
Premium Package   3,673
Driver Assistance Package   2,093
Entertainment system with dual headrest screens   2,790
Night vision   2,139
Options (change) 4,060 22,450
Options (change) 3,853 20,881
Destination 995 925
Total Price $89,350 $109,775
Total Invoice $84,928 $102,158

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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: Cadillac CT6 vs. Audi A8 / S8

Lowest Adjusted Price and Invoice: Cadillac CT6 Platinum
TrueDelta Adjusted Price Difference: $22,590
TrueDelta Adjusted Invoice Difference: $19,288
Model Year20182015
ModelCT6A8 / S8
TrimPlatinumA8 4.0T
Body4dr Sedan4dr Sedan
Engine404hp V6435hp V8
TransmissionT8T8
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)18/26 MPG14/21 MPG
Audio (watts, speakers)?, 34630, 14
Tire (rear if not all the same)245/40-20255/45-19
Total Price$89,350$109,775
Adjustments for Features-2,1650
Feature-Adjusted Total Price$87,185$109,775
Total Invoice$84,928$102,158
Adjustments for Features-2,0580
Feature-Adjusted Total Invoice$82,870$102,158

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Features Comparison: Cadillac CT6 vs. Audi A8 / S8

Model Year20182015
ModelCT6A8 / S8
TrimPlatinumA8 4.0T
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300
AWD$1700$1700
Accessories 
AC power outlet$100 
Electronic engine sound enhancement$0 
Power door closers $300
Remote app$25 
Remote start$150 
Remote window/roof operation $15
Semi-automated parking system$500 
Sunshade, rear, power $225
Sunshades, second row$125 
Sunshades, second row, power $225
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Animal detection, night $50
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 
Full-size spare tire $225
Hands-free driving on limited-access highways$1000 
Lane departure prevention, steering-based $200
Lane keeping assist$400 
Pedestrian detection$50 
Pedestrian detection, night $50
Rear side airbags $300
Rollover sensor $50
Safety key$5 
Surround view video recorder$50 
Temporary spare tire$150 
Vehicle health reports$0 
Wide-view front camera $150
Wide-view rear camera $0
Cargo Management 
Air-conditioned storage compartment $50
Ski sack $50
Climate Control 
Automatic air recirculation $100
Heated windshield washer nozzles $15
Ionizing air filtration$50 
Residual heat $50
Exterior 
Active grille shutters$0 
Laminated rear side windows $100
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
Handwriting recognition $200
HDMI port$25 
Media drive $15
MP3-compatible player $50
SD Card slot $25
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 
Voice control for external devices$0 
Wi-Fi hotspot$50 
Wireless charging station$75 
Instruments, Lights, and Mirrors 
Analog clock $25
Approach detection$25 
Auto-dimming passenger-side mirror $75
Compass $0
Fog light, rear $100
Headlight washers $50
Interior ambient lighting$150 
Interior ambient lighting, configurable $150
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 
Door sill trim plates $100
Illuminated door sill trim plates$200 
Massage, second row seats$150 
Power 4-way lumbar adjuster, second row seats$225 
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power recliner, second row seats$150 
Power seat belt height adjusters, front row $25
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 
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable $1000
Electronic systems calibration selector $200
Rear wheel steering$1500 
Total Value of Features$11,160$8,995
Value of Feature Adjustments$2,165$0
Value of Feature Adjustments-2,0580

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Specifications Comparison: Cadillac CT6 vs. Audi A8 / S8

Model Year20182015
ModelCT6A8 / S8
Body4dr Sedan4dr Sedan
Wheelbase122.4 in117.8 in
Length204.0 in202.2 in
Width74.0 in76.7 in
Height57.9 in57.5 in
Curb Weight4,085 lb.4,707 lb.
Fuel Capacity19.5 gal.21.7 gal.
Row 1 Headroom40.1 in37.2 in
Row 1 Shoulder Room58.3 in59.1 in
Row 1 Hip Room55.8 in0.0 in
Row 1 Legroom42.3 in41.4 in
Row 2 Headroom38.0 in38.1 in
Row 2 Shoulder Room56.1 in57.8 in
Row 2 Hip Room53.4 in0.0 in
Row 2 Legroom40.4 in38.7 in
Cargo Volume15.3 ft314.2 ft3

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Option Package Details
Audi A8 / S8 A8 4.0T

Night vision
FeatureValueRequested?
Night vision1750Yes
Pedestrian detection, night50No
Animal detection, night50No
Total Requested175095%
Total Not Requested1005%
Warm Weather Package
FeatureValueRequested?
Rear air vents with automatic controls150Yes
Sunshades, second row, power225No
Rear dual-zone climate control125Yes
Total Requested27555%
Total Not Requested22545%
Audi Design Selection Package
FeatureValueRequested?
Special interior trim0No
Upgraded leather upholstery0No
Leather upholstery, extended coverage0No
Leather door panel trim250Yes
Upholstered instrument panel, leather700Yes
Laminated front side windows200Yes
Synthetic suede headliner650Yes
Laminated rear side windows100No
Total Requested180095%
Total Not Requested1005%
Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%
Premium Package
FeatureValueRequested?
Cooled or ventilated front seats300Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Massage, driver seat100Yes
Massage, passenger seat100Yes
Head-up display (HUD)350Yes
Blind spot warning system200Yes
Around view cameras300Yes
Wide-view front camera150No
Collision preparation system, rear100No
Wide-view rear camera0No
Total Requested135068%
Total Not Requested65032%
Driver Assistance Package
FeatureValueRequested?
Auto-dimming headlights200Yes
Radar- or camera-based collision preparation system0Yes
Lane departure warning system200Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200Yes
Forward collision warning200Yes
Lane departure prevention system, steering-based200Yes
Total Requested1700100%
Total Not Requested00%

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