Cadillac STS Cadillac STS 2011 Mercedes-Benz SLK Mercedes-Benz SLK 2008

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Cadillac STS 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.

Cadillac STS vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $55,390

Mercedes-Benz SLK SLK280   
Difference: $605

Lowest Total Invoice: $51,572

Mercedes-Benz SLK SLK280   
Difference: $1,111

Calculate Payments

  Down Payment Interest Rate Term
Model Year20112011200820082008
ModelSTSSTSSLKSLKSLK
TrimLuxuryPremiumSLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Base Price $50,820 $56,380 $44,150 $49,450 $63,200
Base Invoice $48,024 $53,279 $41,060 $45,988 $58,776
Luxury Level Two Package 3,950        
Temporary spare tire 350 350      
Lighting Package     1,010 1,010 1,010
Heating Package     980 980  
Appearance Package     1,300 1,000  
Premium II Package     3,995 3,995 1,410
Metallic paint (extra cost)     710 710 710
Automatic climate control, front     720 720 720
Navigation system     1,200 1,200 1,200
CD changer, remote     450 450 450
Luxury Level Two Package 3,476        
Temporary spare tire 308 308      
Lighting Package     939 939 939
Heating Package     911 911  
Appearance Package     1,209 930  
Premium II Package     3,715 3,715 1,311
Metallic paint (extra cost)     659 659 659
Automatic climate control, front     670 670 670
Navigation system     1,116 1,116 1,116
CD changer, remote     418 418 418
Options (change) 4,300 350 10,365 10,065 5,500
Options (change) 3,784 308 9,637 9,358 5,113
Destination 875 875 875 875 875
Gas Tax 0 0 0 0 1,300
Total Price $55,995 $57,605 $55,390 $60,390 $70,875
Total Invoice $52,683 $54,462 $51,572 $56,221 $66,064

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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 Cadillac STS dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK280
TrueDelta Adjusted Price Difference: $4,690
TrueDelta Adjusted Invoice Difference: $4,914
Model Year20112011200820082008
ModelSTSSTSSLKSLKSLK
TrimLuxuryPremiumSLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Engine302hp V6302hp V6228hp V6268hp V6355hp V8
TransmissionT6T6M6T7T7
DrivetrainRWDRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15380, 11380, 11380, 11
Tire (rear if not all the same)235/50-17235/50-18225/45-17225/45-17225/40-18
Total Price$55,995$57,605$55,390$60,390$70,875
Adjustments for Features0-700-4,085-5,135-5,085
Feature-Adjusted Total Price$55,995$56,905$51,305$55,255$65,790
Cost Above Minimum$0$910$0$3,950$14,485
Total Invoice$52,683$54,462$51,572$56,221$66,064
Adjustments for Features0-662-3,803-4,781-4,740
Feature-Adjusted Total Invoice$52,683$53,800$47,769$51,440$61,324
Cost Above Minimum$0$1,117$0$3,671$13,555

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Features Comparison: Cadillac STS vs. Mercedes-Benz SLK

Model Year20112011200820082008
ModelSTSSTSSLKSLKSLK
TrimLuxuryPremiumSLK280SLK350SLK55 AMG
Body4dr Sedan4dr Sedan2dr Hardtop conv.2dr Hardtop conv.2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100   
6-speed manual  $150  
7-speed manually-shiftable automatic   $1200$1200
RWD$0$0$0$0$0
Accessories 
Heated steering wheel$100$100   
Power rear side windows$200$200   
Proximity key$250$250   
Remote start$150$150   
Remote window/roof operation  $15$15$15
Wind blocker, small  $100$100$100
Brakes, Airbags, and Other Safety 
Knee airbag, driver  $75$75$75
Knee airbag, passenger  $75$75$75
Obstacle detection, rear$250$250   
Side curtain airbags$350$350   
Cargo Management 
Cargo net$40$40   
Rear seat pass-through$100$100   
Climate Control 
Automatic air recirculation$100$100   
Heated windshield washer nozzles  $15$15$15
Rain-sensing wipers  $175$175$175
Rear air vents with manual controls$150$150   
Residual heat  $50$50$50
Variable intermittent wipers$75$75   
Drivetrain 
Limited-slip rear differential $300   
Exterior 
Body kit    $0
Laminated front side windows$200$200   
Power retractable hardtop  $6750$6750$6750
Rear spoiler $200  $200
Infotainment 
Aux input  $50$50$50
CD changer, in-dash$325$325   
CD changer, remote  $200$200$200
CD player  $125$125$125
DVD-compatible player$0$0   
Rear seat audio controls$25$25   
Telematics service, such as OnStar  $200$200$200
Telematics service, such as OnStar, with navigation$225$225   
Voice control for nav and audio$100$100   
Instruments, Lights, and Mirrors 
Analog clock  $25$25$25
Auto-dimming headlights$200$200   
Compass$0    
Cornering lights  $50$50$50
Fog light, rear  $100$100$100
Illuminated visor mirror, driver$50$50   
Illuminated visor mirror, passenger$50$50   
Interior ambient lighting  $150$150$150
Mirror tilt-down in reverse  $25$25$25
Visor mirror, driver  $10$10$10
Visor mirror, passenger  $10$10$10
Seats and Interior Trim 
Aluminum trim    $100
Center armrest(s), second row$50$50   
Cooled or ventilated front seats$300$300   
Heated second row seats$200$200   
Leather door panel trim  $250$250$250
Leather-wrapped steering wheel    $150
Memory system, passenger seat  $150$150$150
Metal pedals  $75$75$75
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$300$300$300 
Wood/leather-wrapped steering wheel$150$150$150$150 
Suspension, Wheels, and Tires 
Alloy wheels  $350$350$350
Auto-leveling rear shocks $200   
Polished alloy wheels$350$350   
Sport suspension (upgrade) $0  $0
Transmission 
Steering-wheel-mounted transmission controls    $100
Total Value of Features$5,390$6,090$9,475$10,525$10,475
Value of Feature Adjustments$0$700$4,085$5,135$5,085
Value of Feature Adjustments0-662-3,803-4,781-4,740

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Specifications Comparison: Cadillac STS vs. Mercedes-Benz SLK

Model Year20112008
ModelSTSSLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase116.4 in95.7 in
Length196.7 in160.7 in
Width72.6 in70.4 in
Height57.6 in51.0 in
Curb Weight3,974 lb.3,210 lb.
Fuel Capacity17.0 gal.18.5 gal.
Row 1 Headroom38.7 in37.9 in
Row 1 Shoulder Room58.6 in52.2 in
Row 1 Hip Room54.6 in54.6 in
Row 1 Legroom42.6 in42.5 in
Row 2 Headroom37.9 in0.0 in
Row 2 Shoulder Room57.4 in0.0 in
Row 2 Hip Room55.6 in0.0 in
Row 2 Legroom38.3 in0.0 in
Cargo Volume,
Minimum
13.8 ft36.5 ft3
Cargo Volume,
Maximum
13.89.8 ft3

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Option Package Details
Cadillac STS Luxury

Luxury Level Two Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Auto-dimming headlights200No
Navigation system600Yes
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100No
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested140067%
Total Not Requested67533%

Option Package Details
Mercedes-Benz SLK SLK280

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel150Yes
245/40ZR17 tires200No
Total Requested45053%
Total Not Requested40047%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Power height adjuster, driver seat50Yes
Remote window/roof operation15No
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25No
Power recliner, driver seat100Yes
Interior ambient lighting150No
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 wipers175No
Memory system, driver seat200Yes
Memory system, passenger seat150No
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
Total Requested207569%
Total Not Requested91531%

Option Package Details
Mercedes-Benz SLK SLK350

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Heating Package
FeatureValueRequested?
Heated front seats200Yes
Neck-level heating, front seats150No
Total Requested20057%
Total Not Requested15043%
Appearance Package
FeatureValueRequested?
Wood trim300Yes
225/45ZR17 tires200No
Wood/leather-wrapped steering wheel150Yes
245/40ZR17 tires200No
Total Requested45053%
Total Not Requested40047%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Power height adjuster, driver seat50Yes
Remote window/roof operation15No
Power tilt adjuster, driver seat50Yes
Mirror tilt-down in reverse25No
Power recliner, driver seat100Yes
Interior ambient lighting150No
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 wipers175No
Memory system, driver seat200Yes
Memory system, passenger seat150No
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
Total Requested207569%
Total Not Requested91531%

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium II Package
FeatureValueRequested?
Bluetooth cell phone link100Yes
Surround sound250Yes
Harman/Kardon, 380W, 11 speakers (with subwoofer)350No
Aux input50No
Total Requested35047%
Total Not Requested40053%

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