Cadillac CT6 Cadillac CT6 2018 Mercedes-Benz SLK Mercedes-Benz SLK 2006

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Cadillac CT6 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 CT6 vs. Mercedes-Benz SLK Invoice Comparison

Lowest Total Price: $67,560

Cadillac CT6 Luxury   
Difference: $590

Lowest Total Invoice: $63,525

Mercedes-Benz SLK SLK55 AMG   
Difference: $625

Calculate Payments

  Down Payment Interest Rate Term
Model Year2018201820182006
ModelCT6CT6CT6SLK
TrimLuxuryPremium LuxuryPlatinumSLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.
Base Price $59,195 $65,295 $84,295 $61,500
Base Invoice $56,235 $62,030 $80,080 $57,195
3.0L V6 6,000 4,000 4,000  
CD player, remote 250 250    
Metallic paint (extra cost) 625 625   690
Rear spoiler 495 495 495  
Lighting Package       990
Premium Package       1,470
Satellite radio       500
Bluetooth cell phone link       925
3.0L V6 5,700 3,800 3,800  
CD player, remote 223 223    
Metallic paint (extra cost) 556 556   642
Rear spoiler 441 441 441  
Lighting Package       921
Premium Package       1,367
Satellite radio       465
Bluetooth cell phone link       860
Options (change) 7,370 5,370 4,495 4,575
Options (change) 6,920 5,020 4,241 4,255
Destination 995 995 995 775
Gas Tax 0 0 0 1,300
Total Price $67,560 $71,660 $89,785 $68,150
Total Invoice $64,150 $68,045 $85,316 $63,525

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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 CT6 dealer quotes or Mercedes-Benz SLK dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac CT6 vs. Mercedes-Benz SLK

Lowest Adjusted Price and Invoice: Cadillac CT6 Luxury
TrueDelta Adjusted Price Difference: $3,745
TrueDelta Adjusted Invoice Difference: $2,371
Model Year2018201820182006
ModelCT6CT6CT6SLK
TrimLuxuryPremium LuxuryPlatinumSLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.
Engine404hp V6404hp V6404hp V6355hp V8
TransmissionT8T8T8T7
DrivetrainAWDAWDAWDRWD
EPA Fuel Economy (city/highway)18/26 MPG18/26 MPG18/26 MPG16/22 MPG
Audio (watts, speakers)?, 10?, 10?, 34?, 9
Tire (rear if not all the same)245/45-19245/45-19245/40-20225/40-18
Total Price$67,560$71,660$89,785$68,150
Adjustments for Features-3,155-5,655-15,0850
Feature-Adjusted Total Price$64,405$66,005$74,700$68,150
Cost Above Minimum$0$1,600$10,295$0
Total Invoice$64,150$68,045$85,316$63,525
Adjustments for Features-2,996-5,370-14,3340
Feature-Adjusted Total Invoice$61,154$62,675$70,982$63,525
Cost Above Minimum$0$1,521$9,828$0

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Features Comparison: Cadillac CT6 vs. Mercedes-Benz SLK

Model Year2018201820182006
ModelCT6CT6CT6SLK
TrimLuxuryPremium LuxuryPlatinumSLK55 AMG
Body4dr Sedan4dr Sedan4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300$1300$1300 
7-speed manually-shiftable automatic   $1200
AWD$1700$1700$1700 
RWD   $0
Accessories 
AC power outlet$100$100$100 
Active noise reduction$0$0$0 
Adaptive cruise control, all-speed  $850 
Cruise control$150$150 $150
Electronic engine sound enhancement  $0 
Hands-free trunk or liftgate$100$100$100 
Heated steering wheel$100$100$100 
Power rear side windows$200$200$200 
Power trunk closer$350$350$350 
Proximity key$250$250$250 
Remote app$25$25$25 
Remote start$150$150$150 
Remote window/roof operation   $15
Semi-automated parking system$500$500$500 
Sunshades, second row$125$125$125 
Wind blocker, small   $100
Brakes, Airbags, and Other Safety 
Around view cameras$500$500$500 
Automatic braking, high-speed or partial  $200 
Automatic braking, low-speed$200$200$200 
Backup collision intervention  $150 
Blind spot warning system$200$200$200 
Cross-traffic warning, rear$100$100$100 
Following distance indicator$25$25$25 
Forward collision warning$200$200$200 
Hands-free driving on limited-access highways  $1000 
Lane departure warning$200$200$200 
Lane keeping assist$400$400$400 
Night vision  $1750 
Obstacle detection, front$150$150$150 
Obstacle detection, rear$250$250$250 
Pedestrian detection$50$50$50 
Radar- or camera-based collision preparation system$0$0$0 
Safety key$5$5$5 
Side curtain airbags$350$350$350 
Surround view video recorder$50$50$50 
Tire-pressure monitor$75$75$75 
Vehicle health reports$0$0$0 
Cargo Management 
Rear seat pass-through$100$100$100 
Climate Control 
Heated windshield washer nozzles   $15
Ionizing air filtration  $50 
Rear air vents$100$100  
Rear air vents with automatic controls  $250 
Rear dual-zone climate control  $125 
Residual heat   $50
Engine / Motor 
Automatic start / stop$150$150$150 
Exterior 
Active grille shutters$0$0$0 
Body kit   $0
Laminated front side windows$200$200$200 
Panoramic sunroof $1200$1200 
Power retractable hardtop   $6750
Infotainment 
4G LTE connectivity$0$0$0 
Android Auto support$100$100$100 
App support$0$0$0 
Apple CarPlay support$100$100$100 
Aux input$50$50$50 
Bluetooth audio streaming$25$25$25 
CD player   $125
CD player, remote$100$100  
Entertainment system with dual headrest screens  $1200 
HD radio$50$50$50 
HDMI port  $25 
MP3-compatible player$50$50  
Navigation system$600$600$600 
SMS text-to-speech reader$25$25$25 
Streaming video device  $30 
Streaming video support  $25 
Surround sound$250$250$250 
Telematics service, such as OnStar   $200
Telematics service, such as OnStar, with navigation$225$225$225 
Traffic information$25$25$25 
Voice control for external devices$0$0$0 
Voice control for nav and audio$100$100$100 
Wi-Fi hotspot$50$50$50 
Wireless charging station$75$75$75 
Instruments, Lights, and Mirrors 
Analog clock   $25
Approach detection$25$25$25 
Auto-dimming headlights$200$200$200 
Fog light, rear   $100
Fog lights   $125
Head-up display (HUD) $350$350 
Headlight washers   $50
Illuminated visor mirror, driver$50$50$50 
Illuminated visor mirror, passenger$50$50$50 
Large color reconfigurable instrument cluster display $250$250 
LED headlights$1000$1000$1000 
Mirror tilt-down in reverse   $25
Power-folding mirrors$50$50$50 
Rear camera mirror $200$200 
Visor mirror, driver   $10
Visor mirror, passenger   $10
Xenon HID headlights   $500
Seats and Interior Trim 
Aluminum trim   $100
Center armrest(s), second row$50$50$50 
Cooled or ventilated front seats $300$300 
Cooled or ventilated second row seats  $200 
Heated second row seats $200$200 
Illuminated door sill trim plates$200$200$200 
Massage, driver seat  $100 
Massage, passenger seat  $100 
Massage, second row seats  $150 
Power 4-way lumbar adjuster, driver seat$150$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150$150 
Power 4-way lumbar adjuster, second row seats  $225 
Power recliner, second row seats  $150 
Power thigh support length adjuster, driver seat  $100 
Power thigh support length adjuster, passenger seat  $100 
Power tilt adjuster, second row seats  $150 
Power upper seatback recliner, driver seat  $100 
Power upper seatback recliner, passenger seat  $100 
Synthetic suede inserts in leather seating surfaces   $0
Upholstered instrument panel$300$300  
Upholstered instrument panel, leather  $1000 
Wood trim$300$300$300 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical  $500 
Rear wheel steering  $1500 
Sport suspension (upgrade)   $0
Total Value of Features$12,705$15,205$24,635$9,550
Value of Feature Adjustments$3,155$5,655$15,085$0
Value of Feature Adjustments-2,996-5,370-14,3340

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Specifications Comparison: Cadillac CT6 vs. Mercedes-Benz SLK

Model Year20182006
ModelCT6SLK
Body4dr Sedan2dr Hardtop conv.
Wheelbase122.4 in95.7 in
Length204.0 in160.7 in
Width74.0 in70.4 in
Height57.9 in51.0 in
Curb Weight4,085 lb.3,420 lb.
Fuel Capacity19.5 gal.18.5 gal.
Row 1 Headroom40.1 in37.9 in
Row 1 Shoulder Room58.3 in52.2 in
Row 1 Hip Room55.8 in54.6 in
Row 1 Legroom42.3 in42.5 in
Row 2 Headroom38.0 in0.0 in
Row 2 Shoulder Room56.1 in0.0 in
Row 2 Hip Room53.4 in0.0 in
Row 2 Legroom40.4 in0.0 in
Cargo Volume,
Minimum
15.3 ft36.5 ft3
Cargo Volume,
Maximum
15.39.8 ft3

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Option Package Details
Mercedes-Benz SLK SLK55 AMG

Lighting Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Cornering lights50Yes
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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