Cadillac STS Cadillac STS 2009 Mercury Mariner Mercury Mariner 2006

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Cadillac STS vs. Mercury Mariner 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 Mariner Invoice Comparison

Lowest Total Price: $32,270

Mercury Mariner Hybrid   
Difference: $16,115

Lowest Total Invoice: $29,579

Mercury Mariner Hybrid   
Difference: $15,585

Calculate Payments

  Down Payment Interest Rate Term
Model Year2009200920092006
ModelSTSSTSSTSMariner
TrimV6V8STS-VHybrid
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Base Price $46,410 $55,910 $80,160 $29,225
Base Invoice $43,393 $52,276 $73,448 $27,190
Sunroof 1,200   1,200 585
Premium Luxury Collection   4,155    
Premium Package       3,795
Sunroof 996   996 498
Premium Luxury Collection   3,449    
Premium Package       3,226
Options (change) 1,200 4,155 1,200 4,380
Options (change) 996 3,449 996 3,724
Destination 775 775 775 615
Gas Tax 0 0 2,100 -1,950
Total Price $48,385 $60,840 $84,235 $32,270
Total Invoice $45,164 $56,500 $77,319 $29,579

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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 Mariner dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Mercury Mariner

Lowest Adjusted Price and Invoice: Mercury Mariner Hybrid
TrueDelta Adjusted Price Difference: $16,790
TrueDelta Adjusted Invoice Difference: $16,204
Model Year2009200920092006
ModelSTSSTSSTSMariner
TrimV6V8STS-VHybrid
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Engine302hp V6320hp V8469hp V8133hp I4 H
TransmissionT6T6T6CVT
DrivetrainRWDRWDRWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8300, 15300, 15320, 7
Tire (rear if not all the same)235/50-17235/50-17255/45-18235/70-16
Total Price$48,385$60,840$84,235$32,270
Adjustments for Features0-3,565-5,980-675
Feature-Adjusted Total Price$48,385$57,275$78,255$31,595
Cost Above Minimum$0$8,890$29,870$0
Total Invoice$45,164$56,500$77,319$29,579
Adjustments for Features0-3,311-5,489-619
Feature-Adjusted Total Invoice$45,164$53,189$71,830$28,960
Cost Above Minimum$0$8,025$26,666$0

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Features Comparison: Cadillac STS vs. Mercury Mariner

Model Year2009200920092006
ModelSTSSTSSTSMariner
TrimV6V8STS-VHybrid
Body4dr Sedan4dr Sedan4dr Sedan4dr SUV
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100 
CVT   $1000
RWD$0$0$0 
AWD   $1700
Accessories 
Heated steering wheel $100$100 
Keyless entry keypad   $50
Proximity key$250$250$250 
Remote start$150$150$150 
Tilt steering wheel, manual   $150
Tilt/telescoping steering wheel, power$350$350$350 
Universal garage door opener $100$100 
Brakes, Airbags, and Other Safety 
Blind spot warning system  $200 
Lane departure warning  $200 
Rollover sensor   $50
Stability control$400$400$400 
Tires, run-flat  $150 
Traction control$100$100$100 
Cargo Management 
Cargo cover   $75
Cargo net $40$40 
Overhead sunglass holder   $25
Rear seat pass-through$100$100$100 
Climate Control 
Automatic climate control, front$200$200$200 
Dual-zone climate control$125$125$125 
Heated windshield washer nozzles  $15 
Interior air filter$0$0$0 
Rain-sensing wipers $175$175 
Rear air vents with manual controls$150$150$150 
Rear wiper   $175
Variable intermittent wipers$75  $75
Drivetrain 
Limited-slip rear differential  $300 
Exterior 
Bodyside cladding   $350
Deep-tinted rear windows   $275
Laminated front side windows$200$200$200 
Rear spoiler  $200 
Infotainment 
Bluetooth cell phone link$100$100$100 
CD changer, in-dash $325$325 
CD changer, remote   $200
CD player$125  $125
DVD-compatible player $0$0 
MP3-compatible player   $50
Navigation system $600$600$600
Rear seat audio controls $25$25 
Satellite radio$200$200$200 
Surround sound $250$250 
Telematics service, such as OnStar, with navigation$225$225$225 
Voice control for nav and audio $100$100 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75$75 
Auto-dimming headlights $200$200 
Automatic headlights$125$125$125 
Compass$0$0  
Head-up display (HUD)  $350 
Headlight washers $50$50 
Large energy flow and fuel economy display   $25
Outside temperature display$50$50$50 
Xenon HID headlights $500$500 
Seats and Interior Trim 
Aluminum trim$100   
Center armrest(s), second row$50$50$50 
Folding second row seats   $300
Heated front seats $200$200$200
Heated second row seats $200$200 
Leather-wrapped steering wheel$150 $150$150
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 fore-aft adjuster, passenger seat$100$100$100 
Power height adjuster, passenger seat$100$100$100 
Power recliner, driver seat$100$100$100 
Power recliner, passenger seat$100$100$100 
Power tilt adjuster, passenger seat$100$100$100 
Synthetic suede inserts in leather seating surfaces  $0$0
Upholstered instrument panel, leather  $1000 
Wood trim $300$300 
Wood/leather-wrapped steering wheel $150  
Suspension, Wheels, and Tires 
Alloy wheels  $350$350
Auto-leveling rear shocks $200$200 
Performance steering system (optional)  $0 
Polished alloy wheels$350$350  
Sport suspension (upgrade)  $0 
Total Value of Features$5,250$8,815$11,230$5,925
Value of Feature Adjustments$0$3,565$5,980$675
Value of Feature Adjustments0-3,311-5,489-619

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Specifications Comparison: Cadillac STS vs. Mercury Mariner

Model Year20092006
ModelSTSMariner
Body4dr Sedan4dr SUV
Wheelbase116.4 in103.2 in
Length196.7 in174.9 in
Width72.6 in70.1 in
Height57.6 in68.0 in
Curb Weight3,974 lb.3,259 lb.
Fuel Capacity17.0 gal.16.5 gal.
Row 1 Headroom38.7 in40.4 in
Row 1 Shoulder Room58.6 in56.8 in
Row 1 Hip Room54.6 in53.5 in
Row 1 Legroom42.6 in41.6 in
Row 2 Headroom37.9 in39.2 in
Row 2 Shoulder Room57.4 in55.9 in
Row 2 Hip Room55.6 in49.1 in
Row 2 Legroom38.3 in35.6 in
Cargo Volume,
Minimum
13.8 ft329.3 ft3
Cargo Volume,
Maximum
13.866.3 ft3

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Option Package Details
Cadillac STS V8

Premium Luxury Collection
FeatureValueRequested?
Sunroof900Yes
Termporary spare tire150No
Xenon HID headlights500No
Headlight washers50No
Auto-dimming headlights200No
Navigation system600Yes
Surround sound250No
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100No
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested150048%
Total Not Requested162552%

Option Package Details
Mercury Mariner Hybrid

Sunroof
FeatureValueRequested?
Sunroof900Yes
Overhead sunglass holder25No
Total Requested90097%
Total Not Requested253%
Premium Package
FeatureValueRequested?
Leather seating surfaces900Yes
Front side airbags350Yes
Side curtain airbags350Yes
Heated mirrors25Yes
Heated front seats200Yes
Cargo cover75No
Obstacle detection, rear250Yes
Synthetic suede inserts in leather seating surfaces0Yes
Unbranded, 320W, 7 speakers (with subwoofer)350No
Rollover sensor50No
Navigation system600Yes
CD changer, remote-125Yes
Trip computer150Yes
Large energy flow and fuel economy display25No
Total Requested270084%
Total Not Requested50016%

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