Cadillac STS Cadillac STS 2007 Mercedes-Benz SLK Mercedes-Benz SLK 2006
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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: $68,580

Mercedes-Benz SLK SLK55 AMG   
Difference: $8,075

Lowest Total Invoice: $63,925

Mercedes-Benz SLK SLK55 AMG   
Difference: $6,558

Calculate Payments

  Down Payment Interest Rate Term
Model Year20072006
ModelSTSSLK
TrimSTS-VSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Base Price $73,810 $61,500
Base Invoice $67,638 $57,195
Lighting Package   990
Premium Package   1,470
Metallic paint (extra cost)   690
Satellite radio   500
Bluetooth cell phone link   925
CD changer, remote   430
Lighting Package   921
Premium Package   1,367
Metallic paint (extra cost)   642
Satellite radio   465
Bluetooth cell phone link   860
CD changer, remote   400
Options (change) 0 5,005
Options (change) 0 4,655
Destination 745 775
Gas Tax 2,100 1,300
Total Price $76,655 $68,580
Total Invoice $70,483 $63,925

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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 Cadillac STS 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: Cadillac STS vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Mercedes-Benz SLK SLK55 AMG
TrueDelta Adjusted Price Difference: $10,145
TrueDelta Adjusted Invoice Difference: $8,487
Model Year20072006
ModelSTSSLK
TrimSTS-VSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Engine469hp V8355hp V8
TransmissionT6T7
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)14/20 MPG16/22 MPG
Audio (watts, speakers)300, 15?, 9
Tire (rear if not all the same)255/45-18225/40-18
Total Price$76,655$68,580
Adjustments for Features0-2,070
Feature-Adjusted Total Price$76,655$66,510
Total Invoice$70,483$63,925
Adjustments for Features0-1,929
Feature-Adjusted Total Invoice$70,483$61,996

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Features Comparison: Cadillac STS vs. Mercedes-Benz SLK

Model Year20072006
ModelSTSSLK
TrimSTS-VSLK55 AMG
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
7-speed manually-shiftable automatic $1200
RWD$0$0
Accessories 
Heated steering wheel$100 
Power rear side windows$200 
Proximity key$250 
Remote start$150 
Remote window/roof operation $15
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Knee airbag, driver $75
Knee airbag, passenger $75
Obstacle detection, rear$250 
Side curtain airbags$350 
Tire-pressure monitor$75 
Tires, run-flat$150 
Cargo Management 
Cargo net$40 
Rear seat pass-through$100 
Climate Control 
Rear air vents with manual controls$150 
Residual heat $50
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Body kit $0
Laminated front side windows$200 
Power retractable hardtop $6750
Infotainment 
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
DVD-compatible player$0 
Navigation system$600 
Rear seat audio controls$25 
Surround sound$250 
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Voice control for nav and audio$100 
Instruments, Lights, and Mirrors 
Analog clock $25
Auto-dimming headlights$200 
Cornering lights $50
Fog light, rear $100
Illuminated visor mirror, driver$50 
Illuminated visor mirror, passenger$50 
Mirror tilt-down in reverse $25
Visor mirror, driver $10
Visor mirror, passenger $10
Seats and Interior Trim 
Aluminum trim $100
Center armrest(s), second row$50 
Heated second row seats$200 
Memory system, passenger seat $150
Power 4-way lumbar adjuster, driver seat$150 
Power 4-way lumbar adjuster, passenger seat$150 
Upholstered instrument panel, leather$1000 
Wood trim$300 
Suspension, Wheels, and Tires 
Auto-leveling rear shocks$200 
Performance steering system (optional)$0 
Transmission 
Steering-wheel-mounted transmission controls $100
Total Value of Features$7,290$9,360
Value of Feature Adjustments$0$2,070
Value of Feature Adjustments0-1,929

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See a complete comparison of Cadillac STS vs. Mercedes-Benz SLK features.

Specifications Comparison: Cadillac STS vs. Mercedes-Benz SLK

Model Year20072006
ModelSTSSLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase116.4 in95.7 in
Length196.3 in160.7 in
Width72.6 in70.4 in
Height57.6 in51.0 in
Curb Weight4,233 lb.3,420 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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See a complete comparison of Cadillac STS vs. Mercedes-Benz SLK specs.

Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50Yes
Cornering lights50No
Total Requested55092%
Total Not Requested508%
Premium Package
FeatureValueRequested?
Automatic climate control, front200Yes
Universal garage door opener100Yes
Rain-sensing wipers175Yes
Total Requested475100%
Total Not Requested00%

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