Cadillac STS Cadillac STS 2009 Mazda MX-5 Miata Mazda MX-5 Miata 2016

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Cadillac STS vs. Mazda MX-5 Miata 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 MX-5 Miata Invoice Comparison

Lowest Total Price: $31,580

Mazda MX-5 Miata Grand Touring   
Difference: $22,495

Lowest Total Invoice: $29,814

Mazda MX-5 Miata Grand Touring   
Difference: $20,072

Calculate Payments

  Down Payment Interest Rate Term
Model Year2009200920092016
ModelSTSSTSSTSMX-5 Miata
TrimV6V8STS-VGrand Touring
Body4dr Sedan4dr Sedan4dr Sedan2dr Convertible
Base Price $46,410 $55,910 $80,160 $30,065
Base Invoice $43,393 $52,276 $73,448 $28,427
Luxury Level Two Package 3,350      
Preferred Equipment Group 1SB 3,540      
Premium Luxury Collection   4,155    
Cargo net       50
Proximity key       130
Door sill trim plates       150
Rear spoiler       350
Luxury Level Two Package 2,780      
Preferred Equipment Group 1SB 2,938      
Premium Luxury Collection   3,449    
Cargo net       40
Proximity key       112
Door sill trim plates       120
Rear spoiler       280
Options (change) 6,890 4,155 0 680
Options (change) 5,718 3,449 0 552
Destination 775 775 775 835
Gas Tax 0 0 2,100 0
Total Price $54,075 $60,840 $83,035 $31,580
Total Invoice $49,886 $56,500 $76,323 $29,814

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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 MX-5 Miata 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 MX-5 Miata

Lowest Adjusted Price and Invoice: Mazda MX-5 Miata Grand Touring
TrueDelta Adjusted Price Difference: $20,815
TrueDelta Adjusted Invoice Difference: $18,522
Model Year2009200920092016
ModelSTSSTSSTSMX-5 Miata
TrimV6V8STS-VGrand Touring
Body4dr Sedan4dr Sedan4dr Sedan2dr Convertible
Engine302hp V6320hp V8469hp V8155hp I4
TransmissionT6T6T6M6
DrivetrainRWDRWDRWDRWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15300, 15?, 9
Tire (rear if not all the same)235/50-17235/50-17255/45-18205/45-17
Total Price$54,075$60,840$83,035$31,580
Adjustments for Features-1,680-2,630-4,2450
Feature-Adjusted Total Price$52,395$58,210$78,790$31,580
Cost Above Minimum$0$5,815$26,395$0
Total Invoice$49,886$56,500$76,323$29,814
Adjustments for Features-1,550-2,442-3,9020
Feature-Adjusted Total Invoice$48,336$54,058$72,421$29,814
Cost Above Minimum$0$5,722$24,085$0

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Features Comparison: Cadillac STS vs. Mazda MX-5 Miata

Model Year2009200920092016
ModelSTSSTSSTSMX-5 Miata
TrimV6V8STS-VGrand Touring
Body4dr Sedan4dr Sedan4dr Sedan2dr Convertible
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100 
6-speed manual   $150
RWD$0$0$0$0
Accessories 
Heated steering wheel$100$100$100 
Power rear side windows$200$200$200 
Remote start$150$150$150 
Tilt steering wheel, manual   $150
Tilt/telescoping steering wheel, power$350$350$350 
Wind blocker, small   $100
Brakes, Airbags, and Other Safety 
911 assist   $25
Active or whiplash-reducing head restraints, front seats   $0
Blind spot warning system  $200$200
Cross-traffic warning, rear   $100
Lane departure warning  $200$200
Obstacle detection, rear$250$250$250 
Roll bar   $200
Side curtain airbags$350$350$350 
Temporary spare tire $150  
Tires, run-flat  $150 
Cargo Management 
Rear seat pass-through$100$100$100 
Climate Control 
Automatic air recirculation$100$100$100 
Dual-zone climate control$125$125$125 
Heated windshield washer nozzles  $15 
Interior air filter$0$0$0 
Rear air vents with manual controls$150$150$150 
Drivetrain 
Limited-slip rear differential  $300 
Exterior 
Convertible top   $3000
Laminated front side windows$200$200$200 
Rear spoiler  $200$200
Sunroof $900  
Infotainment 
App support   $0
Aux input   $50
Bluetooth audio streaming   $25
CD changer, in-dash$325$325$325 
CD player, remote   $100
DVD-compatible player$0$0$0 
HD radio   $50
MP3-compatible player   $50
Rear seat audio controls$25$25$25 
SMS text-to-speech reader   $25
Surround sound$250$250$250 
Telematics service, such as OnStar, with navigation$225$225$225 
Traffic information   $25
USB port   $25
Instruments, Lights, and Mirrors 
Compass$0$0  
Fog lights$125$125$125 
Head-up display (HUD)  $350 
Headlight washers$50$50$50 
Illuminated visor mirror, driver$50$50$50 
Illuminated visor mirror, passenger$50$50$50 
LED headlights, single projector or low beam only   $750
Steering-linked headlights   $150
Turn signals on or near mirrors$25$25$25 
Visor mirror, driver   $10
Visor mirror, passenger   $10
Xenon HID headlights$500$500$500 
Seats and Interior Trim 
Center armrest(s), front row$75$75$75 
Center armrest(s), second row$50$50$50 
Cooled or ventilated front seats$300   
Heated second row seats$200$200$200 
Leather door panel trim  $250 
Leather-wrapped steering wheel  $150$150
Manual tilt adjuster, driver seat   $50
Memory system, driver seat$200$200$200 
No leather in second row   $-300
Power 4-way lumbar adjuster, driver seat$150$150$150 
Power 4-way lumbar adjuster, passenger seat$150$150$150 
Power fore-aft adjuster, driver seat$100$100$100 
Power fore-aft adjuster, passenger seat$100$100$100 
Power height adjuster, driver 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, driver seat$100$100$100 
Power tilt adjuster, passenger seat$100$100$100 
Synthetic suede inserts in leather seating surfaces  $0 
Upholstered instrument panel, leather  $1000 
Wood trim$300$300$300 
Wood/leather-wrapped steering wheel$150$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$7,525$8,475$10,090$5,845
Value of Feature Adjustments$1,680$2,630$4,245$0
Value of Feature Adjustments-1,550-2,442-3,9020

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Specifications Comparison: Cadillac STS vs. Mazda MX-5 Miata

Model Year20092016
ModelSTSMX-5 Miata
Body4dr Sedan2dr Convertible
Wheelbase116.4 in90.9 in
Length196.7 in154.1 in
Width72.6 in68.3 in
Height57.6 in48.6 in
Curb Weight3,974 lb.2,333 lb.
Fuel Capacity17.0 gal.11.9 gal.
Row 1 Headroom38.7 in37.4 in
Row 1 Shoulder Room58.6 in52.2 in
Row 1 Hip Room54.6 in52.0 in
Row 1 Legroom42.6 in43.1 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 Volume13.8 ft34.6 ft3

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Option Package Details
Cadillac STS V6

Luxury Level Two Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200Yes
Navigation system600Yes
Surround sound250No
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested140067%
Total Not Requested67533%
Preferred Equipment Group 1SB
FeatureValueRequested?
Cooled or ventilated front seats300No
Wood/leather-wrapped steering wheel0No
Wood trim300No
Heated front seats200Yes
Heated second row seats200No
CD changer, in-dash200No
Power 4-way lumbar adjuster, driver seat150No
Power 4-way lumbar adjuster, passenger seat150No
Universal garage door opener100Yes
Rain-sensing wipers100Yes
Memory system, driver seat200No
DVD-Audio-compatible player0No
Heated steering wheel100No
Cargo net40Yes
Total Requested44022%
Total Not Requested160078%

Option Package Details
Cadillac STS V8

Premium Luxury Collection
FeatureValueRequested?
Sunroof900No
Termporary spare tire150No
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200Yes
Navigation system600Yes
Surround sound250No
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested140045%
Total Not Requested172555%

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