Audi A6 / S6 Audi A6 / S6 2020 Mercedes-Benz SLK Mercedes-Benz SLK 2009

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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: $56,925

Mercedes-Benz SLK SLK300   
Difference: $2,545

Calculate Payments

  Down Payment Interest Rate Term
Model Year202020202020200920092009
ModelA6 / S6A6 / S6A6 / S6SLKSLKSLK
Trim4555S6SLK300SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $54,900 $59,800 $73,900 $45,950 $50,950 $65,700
Competition Package 3,000 3,000        
Metallic paint (extra cost) 575 575 575 720 720 720
Lighting Package       1,030 1,030 1,030
Multimedia Package       2,980 2,980 2,980
Heating Package       990 990  
Premium I Package       2,950 2,950  
Automatic climate control, front       730 730 730
Illuminated door sill trim plates       700 700  
Competition Package 2,790 2,790        
Metallic paint (extra cost) 536 536 536 670 670 670
Lighting Package       958 958 958
Multimedia Package       2,771 2,771 2,771
Heating Package       921 921  
Premium I Package       2,744 2,744  
Automatic climate control, front       679 679 679
Illuminated door sill trim plates       651 651  
Options (change) 3,575 3,575 575 10,100 10,100 5,460
Options (change) 3,326 3,326 536 9,394 9,394 5,078
Destination 995 995 995 875 875 875
Gas Tax 0 0 0 0 0 1,000
Total Price $59,470 $64,370 $75,470 $56,925 $61,925 $73,035

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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

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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: Mercedes-Benz SLK SLK300
Lowest Adjusted Invoice: Audi A6 / S6 S6
TrueDelta Adjusted Price Difference: $1,090
TrueDelta Adjusted Invoice Difference: $51,528
Model Year202020202020200920092009
ModelA6 / S6A6 / S6A6 / S6SLKSLKSLK
Trim4555S6SLK300SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine335hp V6 H335hp V6 H444hp V6 H228hp V6300hp V6355hp V8
TransmissionS7S7T8M6T7T7
DrivetrainAWDAWDAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)630, 14630, 14630, 14380, 11380, 11380, 11
Tire (rear if not all the same)245/45-19245/45-19255/40-20225/45-17225/45-17225/40-18
Total Price$59,470$64,370$75,470$56,925$61,925$73,035
Adjustments for Features-1,455-1,455-2,7550-1,050-1,200
Feature-Adjusted Total Price$58,015$62,915$72,715$56,925$60,875$71,835
Cost Above Minimum$0$4,900$14,700$0$3,950$14,910

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

Model Year202020202020200920092009
ModelA6 / S6A6 / S6A6 / S6SLKSLKSLK
Trim4555S6SLK300SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
7-speed automated manual$1200$1200    
8-speed manually-shiftable automatic  $1300   
6-speed manual   $150  
7-speed manually-shiftable automatic    $1200$1200
AWD$1700$1700$1700   
RWD   $0$0$0
Accessories 
Power rear side windows$200$200$200   
Proximity key$250$250$250   
Remote window/roof operation   $15$15$15
Wind blocker, small   $100$100$100
Brakes, Airbags, and Other Safety 
Blind spot warning system$200$200$200   
Collision preparation system, rear$100$100$100   
Obstacle detection, front$150$150$150   
Obstacle detection, rear$250$250$250   
Rearview camera$200$200$200   
Rollover sensor$50$50$50   
Secondary collision brake assist$25$25$25   
Side curtain airbags$350$350$350   
Cargo Management 
Cargo net$40$40$40   
Rear seat pass-through$100$100$100   
Climate Control 
Automatic air recirculation$100$100$100   
Rear air vents with automatic controls$250$250$250   
Rear dual-zone climate control$125$125$125   
Drivetrain 
Active rear differential$500$500    
Engine / Motor 
Automatic start / stop$150$150$150   
Dual-mode exhaust, switchable  $500   
Regenerative braking$0$0$0   
Exterior 
Black exterior trim (optional)$0$0    
Body kit     $0
Laminated front side windows$200$200$200   
Painted brake calipers (optional)$0$0    
Power retractable hardtop   $6750$6750$6750
Rear spoiler     $200
Sunroof$900$900$900   
Infotainment 
4G LTE connectivity$0$0$0   
Android Auto support$100$100$100   
Apple CarPlay support$100$100$100   
Bluetooth audio streaming$25$25$25   
CD changer, in-dash   $325$325$325
CD player$125$125$125   
Handwriting recognition$200$200$200   
HD radio$50$50$50   
In-vehicle Internet$150$150$150   
iPod integration   $100$100$100
Telematics service, such as OnStar   $200$200$200
Traffic + travel information$25$25$25   
USB port$25$25$25   
Wi-Fi hotspot$50$50$50   
Instruments, Lights, and Mirrors 
Analog clock   $25$25$25
Auto-dimming passenger-side mirror$75$75$75   
Compass$0$0$0   
Cornering lights   $50$50$50
Fog lights   $125$125$125
Headlight washers   $50$50$50
Illuminated visor mirror, driver$50$50$50   
Illuminated visor mirror, passenger$50$50$50   
LED headlights$1000$1000$1000   
Power-folding mirrors$50$50$50   
Visor mirror, driver   $10$10$10
Visor mirror, passenger   $10$10$10
Xenon HID headlights   $500$500$500
Seats and Interior Trim 
Aluminum trim$100$100   $100
Center armrest(s), second row$50$50$50   
Door sill trim plates     $100
Folding second row seats$300$300$300   
Illuminated door sill trim plates$200$200$200$200$200 
Memory system, passenger seat   $150$150$150
Neck-level heating, front seats   $150$150 
No leather in second row   $-300$-300$-300
Synthetic suede inserts in leather seating surfaces     $0
Wood trim  $300   
Suspension, Wheels, and Tires 
Air suspension, auto-leveling and height adjustable  $1000   
Electronic systems calibration selector$200$200$200   
Sport suspension (upgrade)$0$0$0  $0
Transmission 
Steering-wheel-mounted transmission controls$100$100$100  $100
Total Value of Features$10,065$10,065$11,365$8,610$9,660$9,810
Value of Feature Adjustments$1,455$1,455$2,755$0$1,050$1,200
Value of Feature Adjustments-106-98-560-978-1,118

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

Model Year20202009
ModelA6 / S6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase115.1 in95.7 in
Length194.4 in160.7 in
Width74.3 in70.4 in
Height57.4 in51.0 in
Curb Weight4,102 lb.3,210 lb.
Fuel Capacity19.3 gal.18.5 gal.
Row 1 Headroom38.0 in37.9 in
Row 1 Shoulder Room57.8 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom41.3 in42.5 in
Row 2 Headroom38.1 in0.0 in
Row 2 Shoulder Room56.5 in0.0 in
Row 2 Legroom37.4 in0.0 in
Cargo Volume,
Minimum
13.7 ft36.5 ft3
Cargo Volume,
Maximum
13.79.8 ft3

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Option Package Details
Audi A6 / S6 45

Competition Package
FeatureValueRequested?
Front sport buckets100Yes
Aluminum trim100Yes
Active rear differential500No
Painted brake calipers (optional)0No
Sport suspension (upgrade)250Yes
Upgraded leather upholstery0No
Power 4-way lumbar adjuster, passenger seat150Yes
Metal pedals75Yes
Dark-colored headliner (optional)0No
Leather door panel trim250Yes
Black exterior trim (optional)0No
Total Requested92565%
Total Not Requested50035%

Option Package Details
Audi A6 / S6 55

Competition Package
FeatureValueRequested?
Front sport buckets100Yes
Aluminum trim100Yes
Active rear differential500No
Painted brake calipers (optional)0No
Sport suspension (upgrade)250Yes
Upgraded leather upholstery0No
Power 4-way lumbar adjuster, passenger seat150Yes
Metal pedals75Yes
Dark-colored headliner (optional)0No
Leather door panel trim250Yes
Black exterior trim (optional)0No
Total Requested92565%
Total Not Requested50035%

Option Package Details
Mercedes-Benz SLK SLK300

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25Yes
Total Requested99074%
Total Not Requested35026%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Premium I 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
Satellite radio200Yes
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 Requested217593%
Total Not Requested1657%

Option Package Details
Mercedes-Benz SLK SLK350

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25Yes
Total Requested99074%
Total Not Requested35026%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Premium I 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
Satellite radio200Yes
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 Requested217593%
Total Not Requested1657%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50No
Total Requested50083%
Total Not Requested10017%
Multimedia Package
FeatureValueRequested?
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0Yes
Voice control for nav and audio100Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Media drive, large15Yes
SD Card slot25Yes
Total Requested99074%
Total Not Requested35026%

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