Audi A6 / S6 Audi A6 / S6 2018 Mercedes-Benz SLK Mercedes-Benz SLK 2016
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Audi A6 / S6 vs. Mercedes-Benz SLK 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. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $73,950

Audi A6 / S6 S6 4.0 TFSI   
Difference: $6,445

Lowest Total Invoice: $68,846

Audi A6 / S6 S6 4.0 TFSI   
Difference: $5,988

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182016
ModelA6 / S6SLK
TrimS6 4.0 TFSIAMG SLK55
Body4dr Sedan2dr Hardtop conv.
Base Price $71,900 $72,600
Base Invoice $66,868 $67,518
Metallic paint (extra cost) 575 720
Carbon fiber trim 500 2,250
Premium 2 Package   3,050
Illuminated door sill trim plates   850
Metallic paint (extra cost) 536 670
Carbon fiber trim 467 2,093
Premium 2 Package   2,837
Illuminated door sill trim plates   791
Options (change) 1,075 6,870
Options (change) 1,003 6,391
Destination 975 925
Total Price $73,950 $80,395
Total Invoice $68,846 $74,834

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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 Audi A6 / S6 dealer quotes or Mercedes-Benz SLK 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: Audi A6 / S6 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Audi A6 / S6 S6 4.0 TFSI
TrueDelta Adjusted Price Difference: $5,075
TrueDelta Adjusted Invoice Difference: $4,713
Model Year20182016
ModelA6 / S6SLK
TrimS6 4.0 TFSIAMG SLK55
Body4dr Sedan2dr Hardtop conv.
Engine450hp V8415hp V8
TransmissionS7T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)16/24 MPG19/28 MPG
Audio (watts, speakers)630, 14500, 11
Tire (rear if not all the same)255/35-20235/40-18
Total Price$73,950$80,395
Adjustments for Features0-1,370
Feature-Adjusted Total Price$73,950$79,025
Total Invoice$68,846$74,834
Adjustments for Features0-1,275
Feature-Adjusted Total Invoice$68,846$73,559

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Features Comparison: Audi A6 / S6 vs. Mercedes-Benz SLK

Model Year20182016
ModelA6 / S6SLK
TrimS6 4.0 TFSIAMG SLK55
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200 
7-speed manually-shiftable automatic $1200
AWD$1700 
RWD $0
Accessories 
Power rear side windows$200 
Remote app $25
Remote window/roof operation $15
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Collision preparation system, rear$100 
Driver drowsiness monitor $150
Obstacle detection, front$150 
Obstacle detection, rear$250 
Rearview camera$200 
Roll bar $200
Rollover sensor$50 
Secondary collision brake assist$25 
Torque vectoring, brake-based $100
Cargo Management 
Cargo net$40 
Rear seat pass-through$100 
Climate Control 
Automatic air recirculation$100 
Rear air vents with automatic controls$250 
Rear dual-zone climate control$125 
Engine / Motor 
Regenerative braking$0 
Exterior 
Body kit $0
Glass roof panel(s) $300
Laminated front side windows$200 
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
App support $0
Apple CarPlay support$100 
Handwriting recognition$200 
Navigation map updates, three years $0
SMS text-to-speech reader $25
Telematics service, such as OnStar, with navigation $225
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights $200
Auto-dimming passenger-side mirror$75 
Headlight washers $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
LED headlights$1000 
Steering-linked headlights $150
Visor mirror, driver $10
Visor mirror, passenger $10
Xenon HID headlights $500
Seats and Interior Trim 
Center armrest(s), second row$50 
Folding second row seats$300 
Memory system, passenger seat $150
Neck-level heating, front seats $150
No leather in second row $-300
Synthetic suede inserts in leather seating surfaces $0
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Total Value of Features$8,765$10,135
Value of Feature Adjustments$0$1,370
Value of Feature Adjustments0-1,275

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See a complete comparison of Audi A6 / S6 vs. Mercedes-Benz SLK features.

Specifications Comparison: Audi A6 / S6 vs. Mercedes-Benz SLK

Model Year20182016
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase114.6 in95.7 in
Length194.2 in162.8 in
Width73.8 in71.5 in
Height57.8 in51.2 in
Curb Weight4,398 lb.3,528 lb.
Fuel Capacity19.8 gal.15.9 gal.
Row 1 Headroom37.2 in38.0 in
Row 1 Shoulder Room57.5 in52.2 in
Row 1 Legroom41.3 in42.5 in
Row 2 Headroom37.8 in0.0 in
Row 2 Shoulder Room56.3 in0.0 in
Row 2 Legroom37.4 in0.0 in
Cargo Volume,
Minimum		14.1 ft36.4 ft3
Cargo Volume,
Maximum		14.110.1 ft3

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See a complete comparison of Audi A6 / S6 vs. Mercedes-Benz SLK specs.

Option Package Details
Mercedes-Benz SLK AMG SLK55

Premium 2 Package
FeatureValueRequested?
Automatic climate control, front200Yes
Dual-zone climate control125Yes
Blind spot warning system200Yes
App support0No
Navigation map updates, three years0No
DVD-compatible player0Yes
Media drive15Yes
Traffic + travel information25Yes
SD Card slot25Yes
In-vehicle Internet150Yes
Navigation system600Yes
Voice control for nav and audio100Yes
Total Requested1440100%
Total Not Requested00%

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