Cadillac STS Cadillac STS 2010 Mercury Grand Marquis Mercury Grand Marquis 2011

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Cadillac STS vs. Mercury Grand Marquis 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. Mercury Grand Marquis Invoice Comparison

Lowest Total Price: $32,100

Mercury Grand Marquis LS   
Difference: $26,270

Lowest Total Invoice: $30,198

Mercury Grand Marquis LS   
Difference: $24,903

Calculate Payments

  Down Payment Interest Rate Term
Model Year201020102011
ModelSTSSTSGrand Marquis
TrimV6 PremiumV8 PerformanceLS
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $55,945 $68,785 $29,935
Base Invoice $52,868 $65,002 $28,200
Performance Handling Package 1,600 1,600  
Wood/leather-wrapped steering wheel     300
Heated front seats     295
Chrome-plated alloy wheels     695
Performance Handling Package 1,408 1,408  
Wood/leather-wrapped steering wheel     261
Heated front seats     257
Chrome-plated alloy wheels     605
Options (change) 1,600 1,600 1,290
Options (change) 1,408 1,408 1,123
Destination 825 825 875
Total Price $58,370 $71,210 $32,100
Total Invoice $55,101 $67,235 $30,198

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

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TrueDelta Value Comparison: Cadillac STS vs. Mercury Grand Marquis

Lowest Adjusted Price and Invoice: Mercury Grand Marquis LS
TrueDelta Adjusted Price Difference: $19,430
TrueDelta Adjusted Invoice Difference: $18,446
Model Year201020102011
ModelSTSSTSGrand Marquis
TrimV6 PremiumV8 PerformanceLS
Body4dr Sedan4dr Sedan4dr Sedan
Engine302hp V6320hp V8224hp V8
TransmissionT6T6A4
DrivetrainRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15?, 4
Tire (rear if not all the same)255/45-18255/45-18225/60-17
Total Price$58,370$71,210$32,100
Adjustments for Features-6,840-9,2400
Feature-Adjusted Total Price$51,530$61,970$32,100
Cost Above Minimum$0$10,440$0
Total Invoice$55,101$67,235$30,198
Adjustments for Features-6,457-8,7240
Feature-Adjusted Total Invoice$48,644$58,511$30,198
Cost Above Minimum$0$9,867$0

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Features Comparison: Cadillac STS vs. Mercury Grand Marquis

Model Year201020102011
ModelSTSSTSGrand Marquis
TrimV6 PremiumV8 PerformanceLS
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100 
4-speed automatic  $800
RWD$0$0$0
Accessories 
Adaptive cruise control $600 
Cruise control$150 $150
Heated steering wheel$100$100 
Keyless entry keypad  $50
Proximity key$250$250 
Remote start$150$150 
Tilt steering wheel, manual  $150
Tilt/telescoping steering wheel, power$350$350 
Universal garage door opener$100$100 
Brakes, Airbags, and Other Safety 
Blind spot warning system $200 
Lane departure warning $200 
Obstacle detection, rear$250$250 
Side curtain airbags$350$350 
Stability control$400$400 
Temporary spare tire  $150
Cargo Management 
Cargo net$40$40 
Console with shifter$150$150 
Rear seat pass-through$100$100 
Climate Control 
Automatic air recirculation$100$100 
Dual-zone climate control$125$125 
Rear air vents with manual controls$150$150 
Drivetrain 
Limited-slip rear differential$300$300 
Exterior 
Bodyside moldings  $75
Bright-finished exhaust tip(s)$25$25 
Laminated front side windows$200$200 
Rear spoiler$200$200 
Sunroof $900 
Infotainment 
Bluetooth cell phone link$100$100 
CD changer, in-dash$325$325 
CD player  $125
DVD-compatible player$0$0 
Navigation system$600$600 
Rear seat audio controls$25$25 
Satellite radio$200$200 
Surround sound$250$250 
Telematics service, such as OnStar, with navigation$225$225 
Voice control for nav and audio$100$100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75 
Auto-dimming headlights$200$200 
Compass  $0
Cornering lights  $50
Head-up display (HUD) $350 
Headlight washers$50$50 
Tachometer$75$75 
Turn signals on or near mirrors$25$25 
Xenon HID headlights$500$500 
Seats and Interior Trim 
Cooled or ventilated front seats$300$300 
Door sill trim plates$100$100 
Heated second row seats$200$200 
Memory system, driver seat$200$200 
Power 4-way lumbar adjuster, driver seat$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150 
Power lumbar adjuster, driver seat  $100
Power lumbar adjuster, passenger seat  $100
Wood trim$300$300 
Suspension, Wheels, and Tires 
Adaptive dampers - electrical $500 
Auto-leveling rear shocks$200  
Rear air springs, auto-leveling  $350
Sport suspension (upgrade)$0$0 
Whitewall tires  $0
Total Value of Features$8,940$11,340$2,100
Value of Feature Adjustments$6,840$9,240$0
Value of Feature Adjustments-6,457-8,7240

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Specifications Comparison: Cadillac STS vs. Mercury Grand Marquis

Model Year20102011
ModelSTSGrand Marquis
Body4dr Sedan4dr Sedan
Wheelbase116.4 in114.6 in
Length196.7 in212.0 in
Width72.6 in78.3 in
Height57.6 in58.3 in
Curb Weight3,974 lb.4,136 lb.
Fuel Capacity17.0 gal.19.0 gal.
Row 1 Headroom38.7 in39.5 in
Row 1 Shoulder Room58.6 in60.6 in
Row 1 Hip Room54.6 in57.4 in
Row 1 Legroom42.6 in41.6 in
Row 2 Headroom37.9 in37.8 in
Row 2 Shoulder Room57.4 in60.0 in
Row 2 Hip Room55.6 in56.1 in
Row 2 Legroom38.3 in38.0 in
Cargo Volume13.8 ft320.6 ft3

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Option Package Details
Cadillac STS V6 Premium

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

Option Package Details
Cadillac STS V8 Performance

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

Option Package Details
Mercury Grand Marquis LS

Wood/leather-wrapped steering wheel
FeatureValueRequested?
Wood/leather-wrapped steering wheel150Yes
Audio controls on steering wheel125Yes
Total Requested275100%
Total Not Requested00%

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