Audi A6 / S6 Audi A6 / S6 2015 Buick Regal Buick Regal 2016

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Audi A6 / S6 vs. Buick Regal 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. Buick Regal Invoice Comparison

Lowest Total Price: $38,760

Buick Regal GS   
Difference: $41,560

Lowest Total Invoice: $37,056

Buick Regal GS   
Difference: $37,707

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152016
ModelA6 / S6Regal
TrimS6 4.0 TFSIGS
Body4dr Sedan4dr Sedan
Base Price $75,500 $34,065
Base Invoice $70,217 $32,702
Driver Assistance Package 2,800  
Metallic paint (extra cost) 550 395
All-weather floor mats 195 140
Rear side airbags 350  
Driver Confidence Package   1,040
Sunroof   1,000
Adaptive cruise control, all-speed   1,195
Driver Assistance Package 2,604  
Metallic paint (extra cost) 511 359
All-weather floor mats 181 127
Rear side airbags 325  
Driver Confidence Package   946
Sunroof   910
Adaptive cruise control, all-speed   1,087
Options (change) 3,895 3,770
Options (change) 3,621 3,429
Destination 925 925
Total Price $80,320 $38,760
Total Invoice $74,763 $37,056

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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: Audi A6 / S6 vs. Buick Regal

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $34,630
TrueDelta Adjusted Invoice Difference: $31,256
Model Year20152016
ModelA6 / S6Regal
TrimS6 4.0 TFSIGS
Body4dr Sedan4dr Sedan
Engine420hp V8259hp I4
TransmissionS7T6
DrivetrainAWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)630, 14?, 9
Tire (rear if not all the same)255/40-19245/40-19
Total Price$80,320$38,760
Adjustments for Features-6,9300
Feature-Adjusted Total Price$73,390$38,760
Total Invoice$74,763$37,056
Adjustments for Features-6,4510
Feature-Adjusted Total Invoice$68,312$37,056

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Features Comparison: Audi A6 / S6 vs. Buick Regal

Model Year20152016
ModelA6 / S6Regal
TrimS6 4.0 TFSIGS
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
7-speed automated manual$1200 
6-speed manually-shiftable automatic $1100
AWD$1700 
FWD $0
Accessories 
AC power outlet $100
Heated steering wheel $100
Remote app $25
Remote start $150
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Brakes, Airbags, and Other Safety 
Around view cameras$500 
Automatic braking, low-speed$200 
Collision preparation system, rear$100 
Cross-traffic warning, rear $100
Following distance indicator $25
Knee airbag, driver$75 
Knee airbag, passenger$75 
Lane departure prevention$150 
Rearview camera $200
Temporary spare tire$150 
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 
Rain-sensing wipers$175 
Rear air vents $100
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Residual heat$50 
Variable intermittent wipers $75
Drivetrain 
Active rear differential$500 
Engine / Motor 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Active grille shutters $0
Rear spoiler $200
Infotainment 
4G LTE connectivity $0
Android Auto support $100
App support $0
Apple CarPlay support $100
DVD-compatible player$0 
Handwriting recognition$200 
HD radio$50 
In-vehicle Internet$150 
iPod integration$100 
Media drive$15 
SMS text-to-speech reader $25
Surround sound$250 
Telematics service, such as OnStar, with navigation $225
Traffic + travel information$25 
USB port $25
Voice control for external devices $0
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Auto-dimming passenger-side mirror$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 
Performance meter $150
Power-folding mirrors$50 
Xenon HID headlights $500
Seats and Interior Trim 
Door sill trim plates $100
Illuminated door sill trim plates$200 
Leather door panel trim$250 
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Power lumbar adjuster, driver seat $100
Power lumbar adjuster, passenger seat $100
Wood trim$300 
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$11,030$4,100
Value of Feature Adjustments$6,930$0
Value of Feature Adjustments-6,4510

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Specifications Comparison: Audi A6 / S6 vs. Buick Regal

Model Year20152016
ModelA6 / S6Regal
Body4dr Sedan4dr Sedan
Wheelbase114.7 in107.8 in
Length193.9 in190.2 in
Width73.8 in73.1 in
Height57.8 in58.4 in
Curb Weight3,727 lb.3,693 lb.
Fuel Capacity19.8 gal.18.0 gal.
Row 1 Headroom37.2 in38.8 in
Row 1 Shoulder Room57.5 in56.7 in
Row 1 Hip Room0.0 in55.4 in
Row 1 Legroom41.3 in42.1 in
Row 2 Headroom37.8 in36.8 in
Row 2 Shoulder Room56.3 in54.4 in
Row 2 Hip Room0.0 in52.3 in
Row 2 Legroom37.4 in37.3 in
Cargo Volume14.1 ft314.2 ft3

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Option Package Details
Audi A6 / S6 S6 4.0 TFSI

Driver Assistance Package
FeatureValueRequested?
Radar- or camera-based collision preparation system0Yes
Lane departure warning system200Yes
Adaptive cruise control, all-speed700Yes
Lane departure prevention system150No
Around view cameras300No
Automatic braking, low-speed200No
Forward collision warning200Yes
Wide-view front camera150No
Wide-view rear camera0No
Total Requested110058%
Total Not Requested80042%

Option Package Details
Buick Regal GS

Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Radar- or camera-based collision preparation system0Yes
Total Requested700100%
Total Not Requested00%
Driver Confidence Package
FeatureValueRequested?
Memory system, driver seat200Yes
Lane departure warning system200Yes
Blind spot warning system200Yes
Rear cross-traffic detection100No
Forward collision warning200Yes
Following distance indicator25No
Total Requested80086%
Total Not Requested12514%

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