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

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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: $85,845

Cadillac CT6 Platinum   
Difference: $39,130

Lowest Total Invoice: $81,569

Cadillac CT6 Platinum   
Difference: $34,728

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182018
ModelCT6A8 / S8
TrimPlatinumS8 Plus
Body4dr Sedan4dr Sedan
Base Price $84,295 $115,900
Base Invoice $80,080 $107,788
Rear spoiler 495  
Cargo net 60  
Executive Plus Package   2,800
Night vision   2,300
Entertainment system with dual headrest screens   3,000
Rear spoiler 441  
Cargo net 53  
Executive Plus Package   2,604
Night vision   2,140
Entertainment system with dual headrest screens   2,790
Options (change) 555 8,100
Options (change) 494 7,534
Destination 995 975
Total Price $85,845 $124,975
Total Invoice $81,569 $116,297

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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: $40,545
TrueDelta Adjusted Invoice Difference: $36,073
Model Year20182018
ModelCT6A8 / S8
TrimPlatinumS8 Plus
Body4dr Sedan4dr Sedan
Engine335hp V6605hp V8
TransmissionT8T8
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)?, 34630, 14
Tire (rear if not all the same)245/40-20275/35-21
Total Price$85,845$124,975
Adjustments for Features-1,4150
Feature-Adjusted Total Price$84,430$124,975
Total Invoice$81,569$116,297
Adjustments for Features-1,3450
Feature-Adjusted Total Invoice$80,224$116,297

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Features Comparison: Cadillac CT6 vs. Audi A8 / S8

Model Year20182018
ModelCT6A8 / S8
TrimPlatinumS8 Plus
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
Engine / Motor 
Automatic start / stop$150 
Dual-mode exhaust, switchable $500
Exterior 
Active grille shutters$0 
Body kit $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 
In-vehicle Internet $150
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 
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 
Carbon fiber trim $200
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 
Upholstered instrument panel $300
Upholstered instrument panel, leather$1000 
Wood trim$300 
Suspension, Wheels, and Tires 
Active steering $1000
Air suspension, auto-leveling and height adjustable $1000
Electronic systems calibration selector $200
Rear wheel steering$1500 
Total Value of Features$12,560$11,145
Value of Feature Adjustments$1,415$0
Value of Feature Adjustments-1,3450

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Specifications Comparison: Cadillac CT6 vs. Audi A8 / S8

Model Year20182018
ModelCT6A8 / S8
Body4dr Sedan4dr Sedan
Wheelbase122.4 in117.8 in
Length204.0 in202.6 in
Width74.0 in76.7 in
Height57.9 in57.4 in
Curb Weight3,648 lb.4,686 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 S8 Plus

Night vision
FeatureValueRequested?
Night vision1750Yes
Pedestrian detection, night50No
Animal detection, night50No
Total Requested175095%
Total Not Requested1005%
Executive Plus Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Radar- or camera-based collision preparation system0Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200Yes
Forward collision warning200Yes
Lane departure prevention, steering-based200Yes
Total Requested190097%
Total Not Requested503%

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