Mercury Grand Marquis Mercury Grand Marquis 2011 Cadillac STS Cadillac STS 2011
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Mercury Grand Marquis vs. Cadillac STS 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.

Mercury Grand Marquis vs. Cadillac STS Invoice Comparison

Lowest Total Price: $32,100

Mercury Grand Marquis LS   
Difference: $26,755

Lowest Total Invoice: $30,198

Mercury Grand Marquis LS   
Difference: $25,364

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  Down Payment Interest Rate Term
Model Year20112011
ModelGrand MarquisSTS
TrimLSPremium
Body4dr Sedan4dr Sedan
Base Price $29,935 $56,380
Base Invoice $28,200 $53,279
Wood/leather-wrapped steering wheel 300  
Heated front seats 295  
Chrome-plated alloy wheels 695  
Performance Handling Package   1,600
Wood/leather-wrapped steering wheel 261  
Heated front seats 257  
Chrome-plated alloy wheels 605  
Performance Handling Package   1,408
Options (change) 1,290 1,600
Options (change) 1,123 1,408
Destination 875 875
Total Price $32,100 $58,855
Total Invoice $30,198 $55,562

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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 Mercury Grand Marquis dealer quotes or Cadillac STS dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Mercury Grand Marquis vs. Cadillac STS

Lowest Adjusted Price and Invoice: Mercury Grand Marquis LS
TrueDelta Adjusted Price Difference: $19,915
TrueDelta Adjusted Invoice Difference: $18,907
Model Year20112011
ModelGrand MarquisSTS
TrimLSPremium
Body4dr Sedan4dr Sedan
Engine224hp V8302hp V6
TransmissionA4T6
DrivetrainRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)?, 4300, 15
Tire (rear if not all the same)225/60-17255/45-18
Total Price$32,100$58,855
Adjustments for Features0-6,840
Feature-Adjusted Total Price$32,100$52,015
Total Invoice$30,198$55,562
Adjustments for Features0-6,457
Feature-Adjusted Total Invoice$30,198$49,105

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Features Comparison: Mercury Grand Marquis vs. Cadillac STS

Model Year20112011
ModelGrand MarquisSTS
TrimLSPremium
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
4-speed automatic$800 
6-speed manually-shiftable automatic $1100
RWD$0$0
Accessories 
Heated steering wheel $100
Keyless entry keypad$50 
Proximity key $250
Remote start $150
Tilt steering wheel, manual$150 
Tilt/telescoping steering wheel, power $350
Universal garage door opener $100
Brakes, Airbags, and Other Safety 
Obstacle detection, rear $250
Side curtain airbags $350
Stability control $400
Temporary spare tire$150 
Cargo Management 
Cargo net $40
Console with shifter $150
Rear seat pass-through $100
Climate Control 
Automatic air recirculation $100
Dual-zone climate control $125
Rear air vents with manual controls $150
Drivetrain 
Limited-slip rear differential $300
Exterior 
Bodyside moldings$75 
Bright-finished exhaust tip(s) $25
Laminated front side windows $200
Rear spoiler $200
Infotainment 
Bluetooth cell phone link $100
CD changer, in-dash $325
CD player$125 
DVD-compatible player $0
Navigation system $600
Rear seat audio controls $25
Satellite radio $200
Surround sound $250
Telematics service, such as OnStar, with navigation $225
Voice control for nav and audio $100
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror $75
Auto-dimming headlights $200
Compass$0 
Cornering lights$50 
Headlight washers $50
Tachometer $75
Turn signals on or near mirrors $25
Xenon HID headlights $500
Seats and Interior Trim 
Cooled or ventilated front seats $300
Door sill trim plates $100
Heated second row seats $200
Memory system, driver seat $200
Power 4-way lumbar adjuster, driver seat $150
Power 4-way lumbar adjuster, passenger seat $150
Power lumbar adjuster, driver seat$100 
Power lumbar adjuster, passenger seat$100 
Wood trim $300
Suspension, Wheels, and Tires 
Auto-leveling rear shocks $200
Rear air springs, auto-leveling$350 
Sport suspension (upgrade) $0
Whitewall tires$0 
Total Value of Features$1,950$8,790
Value of Feature Adjustments$0$6,840
Value of Feature Adjustments0-6,457

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See a complete comparison of Mercury Grand Marquis vs. Cadillac STS features.

Specifications Comparison: Mercury Grand Marquis vs. Cadillac STS

Model Year20112011
ModelGrand MarquisSTS
Body4dr Sedan4dr Sedan
Wheelbase114.6 in116.4 in
Length212.0 in196.7 in
Width78.3 in72.6 in
Height58.3 in57.6 in
Curb Weight4,136 lb.3,974 lb.
Fuel Capacity19.0 gal.17.0 gal.
Row 1 Headroom39.5 in38.7 in
Row 1 Shoulder Room60.6 in58.6 in
Row 1 Hip Room57.4 in54.6 in
Row 1 Legroom41.6 in42.6 in
Row 2 Headroom37.8 in37.9 in
Row 2 Shoulder Room60.0 in57.4 in
Row 2 Hip Room56.1 in55.6 in
Row 2 Legroom38.0 in38.3 in
Cargo Volume20.6 ft313.8 ft3

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See a complete comparison of Mercury Grand Marquis vs. Cadillac STS specs.

Option Package Details
Cadillac STS Premium

Performance Handling Package
FeatureValueRequested?
255/45ZR18 tires400No
Chrome-plated alloy wheels500Yes
Total Requested50056%
Total Not Requested40044%

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See TrueDelta's information for all Sedans
See TrueDelta's information for all Mercury models.