BMW 6-Series Gran Coupe BMW 6-Series Gran Coupe 2016 Mercedes-Benz SLK Mercedes-Benz SLK 2008
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BMW 6-Series Gran Coupe 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.

BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $54,265

Mercedes-Benz SLK SLK280   
Difference: $26,230

Lowest Total Invoice: $50,526

Mercedes-Benz SLK SLK280   
Difference: $24,289

Calculate Payments

  Down Payment Interest Rate Term
Model Year2016201620162016200820082008
Model6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe6-Series Gran CoupeSLKSLKSLK
Trim640i650iM6ALPINA B6SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $79,500 $90,900 $117,200 $122,200 $44,150 $49,450 $63,200
Base Invoice $73,820 $84,310 $108,505 $113,105 $41,060 $45,988 $58,776
Wood trim     0        
Premium II Package         3,995 3,995 1,410
Heating Package         980 980  
Lighting Package         1,010 1,010 1,010
Tires, run-flat         250 250  
Navigation system         1,200 1,200 1,200
Automatic climate control, front         720 720 720
iPod integration         375 375 375
Metallic paint (extra cost)         710 710 710
Appearance Package           1,000  
Wood trim     0        
Premium II Package         3,715 3,715 1,311
Heating Package         911 911  
Lighting Package         939 939 939
Tires, run-flat         232 232  
Navigation system         1,116 1,116 1,116
Automatic climate control, front         670 670 670
iPod integration         349 349 349
Metallic paint (extra cost)         659 659 659
Appearance Package           930  
Options (change) 0 0 0 0 9,240 10,240 5,425
Options (change) 0 0 0 0 8,591 9,521 5,044
Destination 995 995 995 995 875 875 875
Gas Tax 0 0 1,300 0 0 0 1,300
Total Price $80,495 $91,895 $119,495 $123,195 $54,265 $60,565 $70,800
Total Invoice $74,815 $85,305 $110,800 $114,100 $50,526 $56,384 $65,995

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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 BMW 6-Series Gran Coupe dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK280
TrueDelta Adjusted Price Difference: $25,795
TrueDelta Adjusted Invoice Difference: $23,885
Model Year2016201620162016200820082008
Model6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe6-Series Gran CoupeSLKSLKSLK
Trim640i650iM6ALPINA B6SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine315hp I6445hp V8560hp V8600hp V8228hp V6268hp V6355hp V8
TransmissionT8T8S7T8M6T7T7
DrivetrainRWDRWDRWDAWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)205, 9205, 9205, 9205, 9380, 11380, 11380, 11
Tire (rear if not all the same)245/45-18245/40-19265/35-20255/35-20205/55-16225/45-17225/40-18
Total Price$80,495$91,895$119,495$123,195$54,265$60,565$70,800
Adjustments for Features-435-1,585-2,435-5,1600-1,350-1,150
Feature-Adjusted Total Price$80,060$90,310$117,060$118,035$54,265$59,215$69,650
Cost Above Minimum$0$10,250$37,000$37,975$0$4,950$15,385
Total Invoice$74,815$85,305$110,800$114,100$50,526$56,384$65,995
Adjustments for Features-404-1,471-2,258-4,7790-1,257-1,072
Feature-Adjusted Total Invoice$74,411$83,834$108,542$109,321$50,526$55,127$64,923
Cost Above Minimum$0$9,423$34,131$34,910$0$4,601$14,397

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Features Comparison: BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK

Model Year2016201620162016200820082008
Model6-Series Gran Coupe6-Series Gran Coupe6-Series Gran Coupe6-Series Gran CoupeSLKSLKSLK
Trim640i650iM6ALPINA B6SLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300 $1300   
7-speed automated manual  $1200    
6-speed manual    $150  
7-speed manually-shiftable automatic     $1200$1200
RWD$0$0$0 $0$0$0
AWD   $1700   
Accessories 
Power door closers  $300$300   
Power rear side windows$200$200$200$200   
Proximity key$250$250$250$250   
Remote app$25$25$25$25   
Wind blocker, small    $100$100$100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats$0$0$0$0   
Hill descent control   $250   
Obstacle detection, front$150$150$150$150   
Obstacle detection, rear$250$250$250$250   
Rearview camera$200$200$200$200   
Side curtain airbags$350$350$350$350   
Temporary spare tire    $150$150$150
Tires, run-flat$150$150 $150$150$150 
Cargo Management 
Cargo mat$40$40$40$40   
Rear seat pass-through$100$100$100$100   
Ski sack$50$50$50$50   
Climate Control 
Automatic air recirculation$100$100$100$100   
Rear air vents with automatic controls  $250$250   
Rear air vents with manual controls$150$150     
Rear dual-zone climate control  $125$125   
Drivetrain 
Active rear differential  $500    
Engine / Motor 
Automatic start / stop$150$150$150$150   
Dual-mode exhaust, switchable$500$500$500$500   
Regenerative braking$0$0$0$0   
Exterior 
Body kit      $0
Carbon fiber roof  $0    
Painted brake calipers (optional)  $0    
Power retractable hardtop    $6750$6750$6750
Power-venting glass roof panel$300$300     
Rear spoiler   $200  $200
Infotainment 
4G LTE connectivity$0$0$0$0   
App support$0$0$0$0   
Bluetooth audio streaming$25$25$25$25   
Concierge Services - 3 year subscription $150$150$150   
DVD-compatible player$0$0$0$0   
Handwriting recognition$200$200$200$200   
HD radio$50$50$50$50   
In-vehicle Internet$150$150$150$150   
iPod integration    $100$100$100
Media drive$15$15$15$15   
MP3-compatible player$50$50$50$50   
Navigation map updates, three years$0$0$0$0   
S Voice support$0$0$0$0   
Satellite radio    $200$200$200
Satellite radio - one year subscription$250$250$250$250   
Siri Eyes Free support$0$0$0$0   
SMS text-to-speech reader$25$25$25$25   
Surround sound $250$250$250$250$250$250
Text dictation$50$50$50$50   
Traffic + travel information$25$25$25$25   
USB port$25$25$25$25   
Voice control for external devices$0$0$0$0   
Voice control for nav and audio$100$100$100$100   
Voice recorder$0$0$0$0   
Instruments, Lights, and Mirrors 
Analog clock    $25$25$25
Auto-dimming headlights$200$200$200$200   
Auto-dimming passenger-side mirror$75$75$75$75   
Fog light, rear    $100$100$100
Fog lights$125$125 $125$125$125$125
Illuminated visor mirror, driver$50$50$50$50   
Illuminated visor mirror, passenger$50$50$50$50   
Large color reconfigurable instrument cluster display$250$250     
LED headlights$1000$1000$1000$1000   
Power-folding mirrors$50$50$50$50   
Steering-linked headlights$150$150$150$150   
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
Center armrest(s), second row$50$50$50$50   
Door sill trim plates$100$100  $100$100$100
Folding second row seats$300$300$300$300   
Illuminated door sill trim plates  $200$200   
Leather-wrapped steering wheel$150$150$150$150$150 $150
Memory system, passenger seat $150$150$150$150$150$150
Metal pedals    $75$75$75
Neck-level heating, front seats    $150$150 
No leather in second row    $-300$-300$-300
Power headrest height adjuster, driver seat$50$50$50$50   
Power headrest height adjuster, passenger seat$50$50$50$50   
Power seatback bolsters, driver seat $100$100$100   
Power seatback bolsters, passenger seat $100$100$100   
Power thigh support length adjuster, driver seat $100$100$100   
Power thigh support length adjuster, passenger seat $100$100$100   
Power upper seatback recliner, driver seat $100$100$100   
Power upper seatback recliner, passenger seat $100$100$100   
Synthetic suede headliner  $650$650   
Synthetic suede inserts in leather seating surfaces      $0
Upholstered instrument panel$300$300$300    
Upholstered instrument panel, leather   $1000   
Wood trim$300$300$300$300 $300 
Wood/leather-wrapped steering wheel     $150 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500$500$500$500   
Electronic systems calibration selector$200$200$200$200   
Sport suspension (upgrade)  $0$0  $0
Transmission 
Launch control$100$100$100$100   
Steering-wheel-mounted transmission controls$100$100$100$100  $100
Total Value of Features$9,380$10,530$11,380$14,105$8,945$10,295$10,095
Value of Feature Adjustments$435$1,585$2,435$5,160$0$1,350$1,150
Value of Feature Adjustments-404-1,471-2,258-4,7790-1,257-1,072

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See a complete comparison of BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK features.

Specifications Comparison: BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK

Model Year20162008
Model6-Series Gran CoupeSLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase116.9 in95.7 in
Length197.2 in160.7 in
Width74.6 in70.4 in
Height54.8 in51.0 in
Curb Weight4,192 lb.3,210 lb.
Fuel Capacity18.5 gal.18.5 gal.
Row 1 Headroom40.6 in37.9 in
Row 1 Shoulder Room56.7 in52.2 in
Row 1 Hip Room0.0 in54.6 in
Row 1 Legroom42.1 in42.5 in
Row 2 Headroom37.0 in0.0 in
Row 2 Shoulder Room54.6 in0.0 in
Row 2 Legroom35.3 in0.0 in
Cargo Volume,
Minimum		16.2 ft36.5 ft3
Cargo Volume,
Maximum		16.29.8 ft3

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See a complete comparison of BMW 6-Series Gran Coupe vs. Mercedes-Benz SLK specs.

Option Package Details
Mercedes-Benz SLK SLK280

Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Tilt/telescoping steering wheel, power100Yes
Power tilt adjuster, passenger seat50Yes
Power fore-aft adjuster, driver seat100Yes
Auto-dimming driver-side mirror75Yes
Power height adjuster, driver seat50Yes
Remote window/roof operation15Yes
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25Yes
Power recliner, driver seat100Yes
Interior ambient lighting150Yes
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
Total Requested264088%
Total Not Requested35012%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK350

Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50Yes
Memory system, passenger seat150Yes
Satellite radio200Yes
Power height adjuster, passenger seat50Yes
Tilt/telescoping steering wheel, power100Yes
Power tilt adjuster, passenger seat50Yes
Power fore-aft adjuster, driver seat100Yes
Auto-dimming driver-side mirror75Yes
Power height adjuster, driver seat50Yes
Remote window/roof operation15Yes
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25Yes
Power recliner, driver seat100Yes
Interior ambient lighting150Yes
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
Total Requested264088%
Total Not Requested35012%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel0No
245/40ZR17 tires200No
Total Requested30043%
Total Not Requested40057%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50Yes
Total Requested600100%
Total Not Requested00%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50Yes
Total Requested40053%
Total Not Requested35047%

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