Cadillac XTS Cadillac XTS 2015 Audi A6 / S6 Audi A6 / S6 2018

We are 103,000+ car owners sharing real-world car information.

Join Us

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

Lowest Total Price: $72,185

Cadillac XTS Vsport Platinum   
Difference: $11,105

Lowest Total Invoice: $67,481

Cadillac XTS Vsport Platinum   
Difference: $10,056

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152018
ModelXTSA6 / S6
TrimVsport PlatinumS6 4.0 TFSI
Body4dr Sedan4dr Sedan
Base Price $69,785 $71,900
Base Invoice $65,249 $66,868
CD player, remote 300  
Metallic paint (extra cost) 495 575
Temporary spare tire 350  
Cargo mat 120 190
All-weather floor mats 140 200
Cold Weather Package   500
Comfort Seating Package   1,850
Driver Assistance Package   2,000
Sunshade, rear, power   500
Rear side airbags   350
Wood trim, alternative type   1,250
Synthetic suede headliner   3,000
CD player, remote 264  
Metallic paint (extra cost) 436 536
Temporary spare tire 308  
Cargo mat 106 178
All-weather floor mats 123 186
Cold Weather Package   467
Comfort Seating Package   1,722
Driver Assistance Package   1,860
Sunshade, rear, power   466
Rear side airbags   325
Wood trim, alternative type   1,164
Synthetic suede headliner   2,790
Options (change) 1,405 10,415
Options (change) 1,237 9,694
Destination 995 975
Total Price $72,185 $83,290
Total Invoice $67,481 $77,537

Return to top

While we strive for accuracy, the site is not error-free, and prices can change at any time.

Dealer Price Quotes

Want to find out how much dealers are willing to discount these cars?

Request free, no-obligation Cadillac XTS dealer quotes or Audi A6 / S6 dealer quotes from dealers using our car quote form.

The process is easy and takes just a minute or two. You'll receive price quotes from local approved dealers within 48 hours.

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

Lowest Adjusted Price and Invoice: Cadillac XTS Vsport Platinum
TrueDelta Adjusted Price Difference: $11,025
TrueDelta Adjusted Invoice Difference: $9,982
Model Year20152018
ModelXTSA6 / S6
TrimVsport PlatinumS6 4.0 TFSI
Body4dr Sedan4dr Sedan
Engine410hp V6450hp V8
TransmissionT6S7
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)16/24 MPG16/24 MPG
Audio (watts, speakers)?, 14630, 14
Tire (rear if not all the same)245/40-20255/35-20
Total Price$72,185$83,290
Adjustments for Features0-80
Feature-Adjusted Total Price$72,185$83,210
Total Invoice$67,481$77,537
Adjustments for Features0-74
Feature-Adjusted Total Invoice$67,481$77,463

Return to top

Features Comparison: Cadillac XTS vs. Audi A6 / S6

Model Year20152018
ModelXTSA6 / S6
TrimVsport PlatinumS6 4.0 TFSI
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed automated manual $1200
AWD$1700$1700
Accessories 
AC power outlet$100 
Active noise reduction$0 
Remote app$25 
Remote start$150 
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 
Lane departure prevention, steering-based $200
Secondary collision brake assist $25
Vehicle health reports$0 
Climate Control 
Heated windshield washer nozzles $15
Rear dual-zone climate control $125
Residual heat $50
Drivetrain 
Limited-slip rear differential$300 
Engine / Motor 
Automatic start / stop $150
Dual-mode exhaust, switchable $500
Regenerative braking $0
Exterior 
Panoramic sunroof$1200 
Sunroof $900
Infotainment 
Android Auto support $100
App support$0 
Apple CarPlay support $100
CD player $125
CD player, remote$100 
DVD-compatible player $0
Handwriting recognition $200
In-vehicle Internet $150
Media drive $15
Rear seat audio controls$25 
Telematics service, such as OnStar, with navigation$225 
Traffic + travel information $25
Traffic information$25 
Voice control for external devices$0 
Instruments, Lights, and Mirrors 
Approach detection$25 
Boost gauge$75 
Cornering lights$50 
Fog light, rear $100
Head-up display (HUD)$350 
Large color reconfigurable instrument cluster display$250 
LED headlights $1000
Mirror tilt-down in reverse $25
Steering-linked headlights$150 
Xenon HID headlights$500 
Seats and Interior Trim 
Leather-wrapped steering wheel $150
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Massage, driver seat $100
Massage, passenger seat $100
Metal pedals $75
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 thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Upholstered instrument panel, leather$1000 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable $1000
Alloy wheels $350
Polished alloy wheels$350 
Rear air springs, auto-leveling$350 
Sport suspension (upgrade) $0
Total Value of Features$9,100$9,180
Value of Feature Adjustments$0$80
Value of Feature Adjustments0-74

Return to top

Specifications Comparison: Cadillac XTS vs. Audi A6 / S6

Model Year20152018
ModelXTSA6 / S6
Body4dr Sedan4dr Sedan
Wheelbase111.7 in114.6 in
Length202.0 in194.2 in
Width72.9 in73.8 in
Height59.5 in57.8 in
Curb Weight4,364 lb.4,398 lb.
Fuel Capacity19.0 gal.19.8 gal.
Row 1 Headroom39.0 in37.2 in
Row 1 Shoulder Room57.9 in57.5 in
Row 1 Hip Room55.1 in0.0 in
Row 1 Legroom42.1 in41.3 in
Row 2 Headroom37.8 in37.8 in
Row 2 Shoulder Room56.3 in56.3 in
Row 2 Hip Room54.3 in0.0 in
Row 2 Legroom40.0 in37.4 in
Cargo Volume18.0 ft314.1 ft3

Return to top

Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Sunshade, rear, power
FeatureValueRequested?
Sunshade, rear, power225Yes
Sunshades, second row125Yes
Total Requested350100%
Total Not Requested00%
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 length adjuster, driver seat100No
Power thigh bolsters, driver seat100No
Power seatback bolsters, driver seat100No
Power thigh support length adjuster, passenger seat100No
Power thigh bolsters, passenger seat100No
Power seatback bolsters, passenger seat100No
Memory system, passenger seat150Yes
Massage, driver seat100No
Massage, passenger seat100No
Total Requested45036%
Total Not Requested80064%
Driver Assistance Package
FeatureValueRequested?
Auto-dimming headlights200Yes
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-based200No
Total Requested150088%
Total Not Requested20012%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

See TrueDelta's information for all Sedans
See TrueDelta's information for all Cadillac models.