Cadillac STS Cadillac STS 2009 Mercedes-Benz SL Mercedes-Benz SL 2008
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Cadillac STS vs. Mercedes-Benz SL 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 SL Invoice Comparison

Lowest Total Price: $83,035

Cadillac STS STS-V   
Difference: $55,500

Lowest Total Invoice: $76,323

Cadillac STS STS-V   
Difference: $52,758

Calculate Payments

  Down Payment Interest Rate Term
Model Year20092008
ModelSTSSL
TrimSTS-VSL600
Body4dr Sedan2dr Hardtop conv.
Base Price $80,160 $133,200
Base Invoice $73,448 $123,876
Voice control for nav and audio   510
Obstacle detection, rear   1,130
Tires, run-flat   220
Voice control for nav and audio   474
Obstacle detection, rear   1,051
Tires, run-flat   205
Options (change) 0 1,860
Options (change) 0 1,730
Destination 775 875
Gas Tax 2,100 2,600
Total Price $83,035 $138,535
Total Invoice $76,323 $129,081

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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 SL 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 SL

Lowest Adjusted Price and Invoice: Cadillac STS STS-V
TrueDelta Adjusted Price Difference: $44,825
TrueDelta Adjusted Invoice Difference: $42,811
Model Year20092008
ModelSTSSL
TrimSTS-VSL600
Body4dr Sedan2dr Hardtop conv.
Engine469hp V8510hp V12
TransmissionT6T5
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)13/19 MPG11/18 MPG
Audio (watts, speakers)300, 15250, 8
Tire (rear if not all the same)255/45-18255/40-18
Total Price$83,035$138,535
Adjustments for Features0-10,675
Feature-Adjusted Total Price$83,035$127,860
Total Invoice$76,323$129,081
Adjustments for Features0-9,947
Feature-Adjusted Total Invoice$76,323$119,134

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Features Comparison: Cadillac STS vs. Mercedes-Benz SL

Model Year20092008
ModelSTSSL
TrimSTS-VSL600
Body4dr Sedan2dr Hardtop conv.
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100 
5-speed manually-shiftable automatic $1000
RWD$0$0
Accessories 
Heated steering wheel$100 
Power rear side windows$200 
Power trunk closer $350
Remote start$150 
Remote window/roof operation $15
Wind blocker, small $100
Brakes, Airbags, and Other Safety 
Active or whiplash-reducing head restraints, front seats $0
Auto-raising roll bars / headrests $500
Blind spot warning system$200 
Knee airbag, driver $75
Lane departure warning$200 
Obstacle detection, front $150
Side curtain airbags$350 
Temporary spare tire $150
Cargo Management 
Air-conditioned storage compartment $50
Cargo net$40 
Rear seat pass-through$100 
Storage compartment under front seat(s) $50
Climate Control 
Rear air vents with manual controls$150 
Residual heat $50
Wiper de-icer $25
Drivetrain 
Limited-slip rear differential$300 
Exterior 
Laminated front side windows$200 
Power retractable hardtop $6750
Rear spoiler$200 
Infotainment 
CD changer, in-dash$325 
CD changer, remote $200
CD player $125
DVD-compatible player$0 
MP3-compatible player $50
Rear seat audio controls$25 
Telematics service, such as OnStar $200
Telematics service, such as OnStar, with navigation$225 
Instruments, Lights, and Mirrors 
Auto-dimming headlights$200 
Cornering lights $50
Fog light, rear $100
Head-up display (HUD)$350 
Interior ambient lighting $150
Mirror tilt-down in reverse $25
Seats and Interior Trim 
Center armrest(s), second row$50 
Cooled or ventilated front seats $300
Heated second row seats$200 
Leather-wrapped steering wheel$150 
Memory system, passenger seat $150
Metal pedals $75
No leather in second row $-300
Power headrest height adjuster, driver seat $50
Power headrest height adjuster, passenger seat $50
Power seatback bolsters, driver seat $100
Power seatback bolsters, passenger seat $100
Power thigh support length adjuster, driver seat $100
Power thigh support length adjuster, passenger seat $100
Synthetic suede headliner $650
Synthetic suede inserts in leather seating surfaces$0 
Wood/leather-wrapped steering wheel $150
Suspension, Wheels, and Tires 
Adaptive hydraulic struts, auto-leveling and ht. adjustable $4000
Auto-leveling rear shocks$200 
Performance steering system (optional)$0 
Sport suspension (upgrade)$0 
Total Value of Features$5,015$15,690
Value of Feature Adjustments$0$10,675
Value of Feature Adjustments0-9,947

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

Specifications Comparison: Cadillac STS vs. Mercedes-Benz SL

Model Year20092008
ModelSTSSL
Body4dr Sedan2dr Hardtop conv.
Wheelbase116.4 in100.8 in
Length196.7 in178.5 in
Width72.6 in71.5 in
Height57.6 in51.0 in
Curb Weight4,233 lb.4,455 lb.
Fuel Capacity17.0 gal.21.1 gal.
Row 1 Headroom38.7 in37.7 in
Row 1 Shoulder Room58.6 in54.0 in
Row 1 Hip Room54.6 in53.9 in
Row 1 Legroom42.6 in42.9 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 ft37.3 ft3
Cargo Volume,
Maximum		13.810.2 ft3

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See a complete comparison of Cadillac STS vs. Mercedes-Benz SL specs.

Option Package Details
Mercedes-Benz SL SL600

Obstacle detection, rear
FeatureValueRequested?
Obstacle detection, rear250Yes
Obstacle detection, front150No
Total Requested25063%
Total Not Requested15037%

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