Audi A6 / S6 Audi A6 / S6 2015 Mercedes-Benz SLK Mercedes-Benz SLK 2011
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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: $64,225

Mercedes-Benz SLK SLK350   
Difference: $12,750

Lowest Total Invoice: $59,792

Mercedes-Benz SLK SLK350   
Difference: $11,861

Calculate Payments

  Down Payment Interest Rate Term
Model Year20152011
ModelA6 / S6SLK
TrimS6 4.0 TFSISLK350
Body4dr Sedan2dr Hardtop conv.
Base Price $75,500 $53,300
Base Invoice $70,217 $49,569
Metallic paint (extra cost) 550 720
Lighting Package   1,070
Multimedia Package   2,890
Premium 1 Package   2,590
Automatic climate control, front   760
Wood trim   690
Upgraded leather upholstery   630
Illuminated door sill trim plates   700
Metallic paint (extra cost) 511 670
Lighting Package   995
Multimedia Package   2,688
Premium 1 Package   2,409
Automatic climate control, front   707
Wood trim   642
Upgraded leather upholstery   586
Illuminated door sill trim plates   651
Options (change) 550 10,050
Options (change) 511 9,348
Destination 925 875
Total Price $76,975 $64,225
Total Invoice $71,653 $59,792

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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: Mercedes-Benz SLK SLK350
TrueDelta Adjusted Price Difference: $10,245
TrueDelta Adjusted Invoice Difference: $9,529
Model Year20152011
ModelA6 / S6SLK
TrimS6 4.0 TFSISLK350
Body4dr Sedan2dr Hardtop conv.
Engine420hp V8300hp V6
TransmissionS7T7
DrivetrainAWDRWD
EPA Fuel Economy (city/highway)17/27 MPG18/26 MPG
Audio (watts, speakers)630, 14?, 9
Tire (rear if not all the same)255/40-19225/40-18
Total Price$76,975$64,225
Adjustments for Features-2,5050
Feature-Adjusted Total Price$74,470$64,225
Total Invoice$71,653$59,792
Adjustments for Features-2,3320
Feature-Adjusted Total Invoice$69,321$59,792

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

Model Year20152011
ModelA6 / S6SLK
TrimS6 4.0 TFSISLK350
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 
Proximity key$250 
Remote window/roof operation $15
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Blind spot warning system$200 
Collision preparation system, rear$100 
Obstacle detection, front$150 
Obstacle detection, rear$250 
Rearview camera$200 
Rollover sensor$50 
Side curtain airbags$350 
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 
Drivetrain 
Active rear differential$500 
Engine / Motor 
Dual-mode exhaust, switchable$500 
Regenerative braking$0 
Exterior 
Power retractable hardtop $6750
Rear spoiler $200
Sunroof$900 
Infotainment 
Bluetooth audio streaming$25 
CD changer, in-dash $325
CD player$125 
Handwriting recognition$200 
In-vehicle Internet$150 
SD Card slot $25
Surround sound$250 
Telematics service, such as OnStar $200
Traffic + travel information$25 
Traffic information $25
Wi-Fi hotspot$50 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming passenger-side mirror$75 
Compass$0 
Fog lights $125
Head-up display (HUD)$350 
Headlight washers $50
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
LED headlights$1000 
Power-folding mirrors$50 
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 
Heated front seats$200 
Leather-wrapped steering wheel$150 
Memory system, passenger seat $150
No leather in second row $-300
Wood/leather-wrapped steering wheel $150
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Air suspension, auto-leveling and height adjustable$1000 
Electronic systems calibration selector$200 
Sport suspension (upgrade)$0 
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$12,065$9,560
Value of Feature Adjustments$2,505$0
Value of Feature Adjustments-2,3320

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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 Year20152011
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase114.7 in95.7 in
Length193.9 in160.7 in
Width73.8 in70.4 in
Height57.8 in51.0 in
Curb Weight4,398 lb.3,295 lb.
Fuel Capacity19.8 gal.18.5 gal.
Row 1 Headroom37.2 in37.9 in
Row 1 Shoulder Room57.5 in52.2 in
Row 1 Hip Room0.0 in54.6 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 ft36.5 ft3
Cargo Volume,
Maximum		14.19.8 ft3

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

Option Package Details
Mercedes-Benz SLK SLK350

Wood trim
FeatureValueRequested?
Wood trim300Yes
Wood/leather-wrapped steering wheel0No
Total Requested300100%
Total Not Requested00%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50Yes
Total Requested55092%
Total Not Requested508%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Satellite radio200Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Traffic information25Yes
HD radio50Yes
Media drive, large15Yes
SD Card slot25No
Total Requested99098%
Total Not Requested252%
Premium 1 Package
FeatureValueRequested?
Tilt/telescoping steering wheel, power100Yes
Power fore-aft adjuster, driver seat100Yes
Power height adjuster, driver seat50Yes
Power tilt adjuster, driver seat50Yes
Power recliner, driver seat100Yes
Power 4-way lumbar adjuster, driver seat150Yes
Power recliner, passenger seat100Yes
Power fore-aft adjuster, passenger seat100Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Universal garage door opener100Yes
Auto-dimming rearview mirror150Yes
Rain-sensing wipers175Yes
Memory system, driver seat200Yes
Memory system, passenger seat150No
Power height adjuster, passenger seat50Yes
Power tilt adjuster, passenger seat50Yes
Auto-dimming driver-side mirror75Yes
Remote window/roof operation15No
Mirror tilt-down in reverse25Yes
Interior ambient lighting150Yes
iPod integration100Yes
Total Requested197592%
Total Not Requested1658%

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