Cadillac STS Cadillac STS 2007 Mazda Mazda6 Mazda Mazda6 2018

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Cadillac STS vs. Mazda Mazda6 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. Mazda Mazda6 Invoice Comparison

Lowest Total Price: $33,120

Mazda Mazda6 Grand Touring Reserve   
Difference: $31,125

Calculate Payments

  Down Payment Interest Rate Term
Model Year200720182018
ModelSTSMazda6Mazda6
TrimV8Grand Touring ReserveSignature
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $51,810 $31,700 $34,750
Preferred Equipment Group 1SG 8,190    
Adaptive cruise control 2,300    
Sunroof 1,200    
Cargo net   50 50
Obstacle detection, rear   475  
Preferred Equipment Group 1SG 6,798    
Adaptive cruise control 1,909    
Sunroof 996    
Cargo net   40 40
Obstacle detection, rear   380  
Options (change) 11,690 525 50
Options (change) 9,703 420 40
Destination 745 895 895
Total Price $64,245 $33,120 $35,695

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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 Mazda Mazda6 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. Mazda Mazda6

Lowest Adjusted Price: Mazda Mazda6 Grand Touring Reserve
Lowest Adjusted Invoice: Mazda Mazda6 Signature
TrueDelta Adjusted Price Difference: $31,700
TrueDelta Adjusted Invoice Difference: $57,996
Model Year200720182018
ModelSTSMazda6Mazda6
TrimV8Grand Touring ReserveSignature
Body4dr Sedan4dr Sedan4dr Sedan
Engine320hp V8250hp I4250hp I4
TransmissionT6T6T6
DrivetrainRWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15231, 11231, 11
Tire (rear if not all the same)235/50-18225/45-19225/45-19
Total Price$64,245$33,120$35,695
Adjustments for Features0-575-1,575
Feature-Adjusted Total Price$64,245$32,545$34,120
Cost Above Minimum$0$0$1,575

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Features Comparison: Cadillac STS vs. Mazda Mazda6

Model Year200720182018
ModelSTSMazda6Mazda6
TrimV8Grand Touring ReserveSignature
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100
RWD$0  
FWD $0$0
Accessories 
Adaptive cruise control$600  
Adaptive cruise control, all-speed $850$850
Remote start$150  
Tilt/telescoping steering wheel, manual $250$250
Tilt/telescoping steering wheel, power$350  
Brakes, Airbags, and Other Safety 
911 assist $25$25
Active or whiplash-reducing head restraints, front seats $0$0
Around view cameras  $500
Automatic braking, high-speed or partial $200$200
Automatic braking, low-speed $200$200
Blind spot warning system $200$200
Cross-traffic warning, rear $100$100
Following distance indicator $25$25
Forward collision warning $200$200
G-vectoring control $100$100
Lane departure prevention, steering-based $200$200
Lane departure warning $200$200
Obstacle detection, front  $150
Rearview camera $200 
Cargo Management 
Overhead sunglass holder $25$25
Rear seat pass-through$100  
Climate Control 
Rear air vents $100$100
Rear air vents with manual controls$150  
Wiper de-icer $25$25
Drivetrain 
Limited-slip rear differential$300  
Infotainment 
Android Auto support $100$100
App support $0$0
Apple CarPlay support $100$100
Aux input $50$50
Bluetooth audio streaming $25$25
CD changer, in-dash$325  
DVD-compatible player$0  
HD radio $50$50
Rear seat audio controls$25  
SMS text-to-speech reader $25$25
Telematics service, such as OnStar, with navigation$225  
Traffic information $25$25
Instruments, Lights, and Mirrors 
Headlight washers$50  
LED headlights, single projector or low beam only $750$750
Road sign information $75$75
Steering-linked headlights $150$150
Xenon HID headlights$500  
Seats and Interior Trim 
Folding second row seats $300$300
Interior trim, special color  $0
Leather-wrapped steering wheel $150$150
Power 4-way lumbar adjuster, driver seat$150  
Power 4-way lumbar adjuster, passenger seat$150  
Power lumbar adjuster, driver seat $100$100
Power tilt adjuster, passenger seat$100  
Synthetic suede door panel trim  $250
Wood trim$300 $300
Wood/leather-wrapped steering wheel$150  
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500  
Alloy wheels $350$350
Auto-leveling rear shocks$200  
Performance steering system (optional)$0  
Polished alloy wheels$350  
Sport suspension (upgrade)$0  
Transmission 
Steering-wheel-mounted transmission controls $100$100
Total Value of Features$5,775$6,350$7,350
Value of Feature Adjustments$0$575$1,575
Value of Feature Adjustments0-23-41

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Specifications Comparison: Cadillac STS vs. Mazda Mazda6

Model Year20072018
ModelSTSMazda6
Body4dr Sedan4dr Sedan
Wheelbase116.4 in111.4 in
Length196.3 in191.5 in
Width72.6 in72.4 in
Height57.6 in57.1 in
Curb Weight3,961 lb.3,241 lb.
Fuel Capacity17.0 gal.16.4 gal.
Row 1 Headroom38.7 in38.4 in
Row 1 Shoulder Room58.6 in57.1 in
Row 1 Hip Room54.6 in56.1 in
Row 1 Legroom42.6 in42.2 in
Row 2 Headroom37.9 in37.1 in
Row 2 Shoulder Room57.4 in55.5 in
Row 2 Hip Room55.6 in56.1 in
Row 2 Legroom38.3 in38.7 in
Cargo Volume13.8 ft314.8 ft3

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Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SG
FeatureValueRequested?
Adaptive shocks - electrical500No
235/50WR18 tires200No
255/45WR18 tires200No
Cooled or ventilated front seats300Yes
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200Yes
Sport suspension (upgrade)250No
Performance braking system (optional)250No
Limited-slip rear differential300No
Rear spoiler200Yes
Additional engine cooling0No
Power steering cooler0No
Performance steering system (optional)250No
Navigation system600Yes
Bluetooth cell phone link100Yes
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested225049%
Total Not Requested237551%

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