Audi A8 / S8 Audi A8 / S8 2013 Cadillac STS Cadillac STS 2008

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

Lowest Total Price: $66,735

Cadillac STS V8   
Difference: $21,760

Lowest Total Invoice: $61,116

Cadillac STS V8   
Difference: $21,251

Calculate Payments

  Down Payment Interest Rate Term
Model Year201320132008
ModelA8 / S8A8 / S8STS
TrimA8 3.0TA8 4.0TV8
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $72,200 $80,900 $53,275
Base Invoice $67,146 $75,238 $49,812
Cold Weather Package 800 800  
Driver Assistance Package 3,000 3,000  
Convenience Package 3,000 3,000  
Sport Plus Package 3,500 3,500  
Sport Design Package 4,500 4,500  
Laminated front side windows 600 600  
Preferred Equipment Group 1SG     11,690
Active steering     995
Cold Weather Package 744 744  
Driver Assistance Package 2,790 2,790  
Convenience Package 2,790 2,790  
Sport Plus Package 3,257 3,257  
Sport Design Package 4,187 4,187  
Laminated front side windows 558 558  
Preferred Equipment Group 1SG     9,703
Active steering     826
Options (change) 15,400 15,400 12,685
Options (change) 14,326 14,326 10,529
Destination 895 895 775
Total Price $88,495 $97,195 $66,735
Total Invoice $82,367 $90,459 $61,116

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TrueDelta Value Comparison: Audi A8 / S8 vs. Cadillac STS

Lowest Adjusted Price and Invoice: Cadillac STS V8
TrueDelta Adjusted Price Difference: $14,430
TrueDelta Adjusted Invoice Difference: $14,429
Model Year201320132008
ModelA8 / S8A8 / S8STS
TrimA8 3.0TA8 4.0TV8
Body4dr Sedan4dr Sedan4dr Sedan
Engine333hp V6420hp V8320hp V8
TransmissionT8T8T6
DrivetrainAWDAWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)630, 14630, 14300, 15
Tire (rear if not all the same)265/40-20265/40-20235/50-18
Total Price$88,495$97,195$66,735
Adjustments for Features-7,330-7,3300
Feature-Adjusted Total Price$81,165$89,865$66,735
Cost Above Minimum$0$8,700$0
Total Invoice$82,367$90,459$61,116
Adjustments for Features-6,822-6,8220
Feature-Adjusted Total Invoice$75,545$83,637$61,116
Cost Above Minimum$0$8,092$0

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Features Comparison: Audi A8 / S8 vs. Cadillac STS

Model Year201320132008
ModelA8 / S8A8 / S8STS
TrimA8 3.0TA8 4.0TV8
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300 
6-speed manually-shiftable automatic  $1100
AWD$1700$1700 
RWD  $0
Accessories 
Active noise reduction $0 
Adaptive cruise control  $600
Adaptive cruise control, all-speed$850$850 
Power door closers$300$300 
Power trunk closer$350$350 
Remote start  $150
Remote window/roof operation$15$15 
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0 
Automatic braking, low-speed$200$200 
Forward collision warning$200$200 
Full-size spare tire$225$225 
Knee airbag, driver$75$75 
Knee airbag, passenger$75$75 
Obstacle detection, front$150$150 
Radar- or camera-based collision preparation system$0$0 
Rear side airbags$300$300 
Rearview camera$200$200 
Rollover sensor$50$50 
Temporary spare tire  $150
Cargo Management 
Air-conditioned storage compartment$50$50 
Cargo net  $40
Ski sack$50$50 
Climate Control 
Heated windshield washer nozzles$15$15 
Rear air vents$100$100 
Rear air vents with manual controls  $150
Residual heat$50$50 
Drivetrain 
Active rear differential$500$500 
Limited-slip rear differential  $300
Exterior 
Laminated rear side windows$100$100 
Rear spoiler  $200
Infotainment 
Aux input$50$50 
Bluetooth audio streaming$25$25 
CD changer, in-dash  $325
CD player$125$125 
Handwriting recognition$200$200 
HD radio$50$50 
In-vehicle Internet$150$150 
Media drive$15$15 
MP3-compatible player$50$50 
Rear seat audio controls  $25
SD Card slot$25$25 
Telematics service, such as OnStar, with navigation  $225
Traffic + travel information$25$25 
USB port$25$25 
Wi-Fi hotspot$50$50 
Instruments, Lights, and Mirrors 
Analog clock$25$25 
Auto-dimming headlights  $200
Auto-dimming passenger-side mirror$75$75 
Cornering lights$50$50 
Fog light, rear$100$100 
Head-up display (HUD)  $350
Interior ambient lighting$150$150 
Mirror tilt-down in reverse$25$25 
Power-folding mirrors$50$50 
Steering-linked headlights$150$150 
Seats and Interior Trim 
Leather-wrapped steering wheel$150$150 
Massage, driver seat$100$100 
Massage, passenger seat$100$100 
Memory system, passenger seat$150$150 
Power headrest height adjuster, driver seat$50$50 
Power headrest height adjuster, passenger seat$50$50 
Power seat belt height adjusters, front row$25$25 
Power seatback bolsters, driver seat$100$100 
Power seatback bolsters, passenger seat$100$100 
Power thigh bolsters, driver seat$100$100 
Power thigh bolsters, passenger seat$100$100 
Power thigh support length adjuster, driver seat$100$100 
Power thigh support length adjuster, passenger seat$100$100 
Power upper seatback recliner, driver seat$100$100 
Power upper seatback recliner, passenger seat$100$100 
Upholstered instrument panel$300$300 
Wood/leather-wrapped steering wheel  $150
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000$1000 
Alloy wheels$350$350 
Electronic systems calibration selector$200$200 
Performance steering system (optional)  $0
Polished alloy wheels  $350
Transmission 
Steering-wheel-mounted transmission controls$100$100 
Total Value of Features$11,645$11,645$4,315
Value of Feature Adjustments$7,330$7,330$0
Value of Feature Adjustments-6,822-6,8220

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Specifications Comparison: Audi A8 / S8 vs. Cadillac STS

Model Year20132008
ModelA8 / S8STS
Body4dr Sedan4dr Sedan
Wheelbase117.8 in116.4 in
Length202.2 in196.7 in
Width76.7 in72.6 in
Height57.5 in57.6 in
Curb Weight4,377 lb.3,974 lb.
Fuel Capacity23.8 gal.17.0 gal.
Row 1 Headroom37.2 in38.7 in
Row 1 Shoulder Room59.1 in58.6 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.4 in42.6 in
Row 2 Headroom38.1 in37.9 in
Row 2 Shoulder Room57.8 in57.4 in
Row 2 Hip Room0.0 in55.6 in
Row 2 Legroom37.7 in38.3 in
Cargo Volume13.2 ft313.8 ft3

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Option Package Details
Audi A8 / S8 A8 3.0T

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%
Driver Assistance Package
FeatureValueRequested?
Lane departure warning system200Yes
Radar- or camera-based collision preparation system0No
Adaptive cruise control, all-speed700No
Blind spot warning system200Yes
Automatic braking, low-speed200No
Forward collision alert200No
Total Requested40027%
Total Not Requested110073%
Convenience Package
FeatureValueRequested?
Obstacle detection, front150No
Obstacle detection, rear250Yes
Rearview camera200No
Power door closers300No
Power decklid350No
Proximity key250Yes
Total Requested50033%
Total Not Requested100067%
Sport Plus Package
FeatureValueRequested?
Active steering1000Yes
Sport suspension (upgrade)250Yes
Active rear differential500No
Front sport buckets100No
265/40YR20 tires400No
Total Requested125056%
Total Not Requested100044%
Sport Design Package
FeatureValueRequested?
Front sport buckets100No
265/40HR20 tires400No
Cooled or ventilated front seats300Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Massage, driver seat100No
Massage, passenger seat100No
Total Requested30021%
Total Not Requested110079%

Option Package Details
Audi A8 / S8 A8 4.0T

Cold Weather Package
FeatureValueRequested?
Heated second row seats200Yes
Rear seat pass-through100Yes
Heated steering wheel100Yes
Ski sack50No
Total Requested40089%
Total Not Requested5011%
Driver Assistance Package
FeatureValueRequested?
Lane departure warning system200Yes
Radar- or camera-based collision preparation system0No
Adaptive cruise control, all-speed700No
Blind spot warning system200Yes
Automatic braking, low-speed200No
Forward collision alert200No
Total Requested40027%
Total Not Requested110073%
Convenience Package
FeatureValueRequested?
Obstacle detection, front150No
Obstacle detection, rear250Yes
Rearview camera200No
Power door closers300No
Power decklid350No
Proximity key250Yes
Total Requested50033%
Total Not Requested100067%
Sport Plus Package
FeatureValueRequested?
Active steering1000Yes
Sport suspension (upgrade)250Yes
Active rear differential500No
Front sport buckets100No
265/40YR20 tires400No
Total Requested125056%
Total Not Requested100044%
Sport Design Package
FeatureValueRequested?
Front sport buckets100No
265/40HR20 tires400No
Cooled or ventilated front seats300Yes
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Massage, driver seat100No
Massage, passenger seat100No
Total Requested30021%
Total Not Requested110079%

Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SG
FeatureValueRequested?
Adaptive shocks - electrical500Yes
Cooled or ventilated front seats300Yes
Sunroof900Yes
Adaptive cruise control450Yes
235/50WR18 tires200No
255/45WR18 tires200No
Xenon HID headlights500Yes
Headlight washers50Yes
Auto-dimming headlights200No
Head-up display (HUD)350No
Lane departure warning system200Yes
Blind spot warning system200Yes
Sport suspension (upgrade)250Yes
Performance braking system (optional)250No
Limited-slip rear differential300Yes
Rear spoiler200No
Additional engine cooling0No
Power steering cooler0No
Performance steering system (optional)250No
Navigation system600Yes
Bluetooth cell phone link100Yes
Surround sound250Yes
DVD-compatible player0Yes
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested470070%
Total Not Requested202530%

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