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Cadillac STS vs. Buick Regal 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. Buick Regal Invoice Comparison

Lowest Total Price: $35,995

Buick Regal Turbo   
Difference: $25,950

Lowest Total Invoice: $34,439

Buick Regal Turbo   
Difference: $22,542

Calculate Payments

  Down Payment Interest Rate Term
Model Year200720132013
ModelSTSRegalRegal
TrimV8TurboGS
Body4dr Sedan4dr Sedan4dr Sedan
Base Price $51,810 $30,635 $34,980
Base Invoice $48,442 $29,410 $33,581
Preferred Equipment Group 1SG 8,190    
Sunroof 1,200 1,000 1,000
Premium 3 Package   2,580  
Navigation system   895 895
255/35ZR20     700
Preferred Equipment Group 1SG 6,798    
Sunroof 996 880 880
Premium 3 Package   2,476  
Navigation system   788 788
255/35ZR20     616
Options (change) 9,390 4,475 2,595
Options (change) 7,794 4,144 2,284
Destination 745 885 885
Total Price $61,945 $35,995 $38,460
Total Invoice $56,981 $34,439 $36,750

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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 Buick Regal 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. Buick Regal

Lowest Adjusted Price and Invoice: Buick Regal Turbo
TrueDelta Adjusted Price Difference: $24,325
TrueDelta Adjusted Invoice Difference: $21,050
Model Year200720132013
ModelSTSRegalRegal
TrimV8TurboGS
Body4dr Sedan4dr Sedan4dr Sedan
Engine320hp V8220hp I4270hp I4
TransmissionT6T6T6
DrivetrainRWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15336, 9336, 9
Tire (rear if not all the same)235/50-18245/40-19255/35-20
Total Price$61,945$35,995$38,460
Adjustments for Features-1,700-750
Feature-Adjusted Total Price$60,245$35,920$38,460
Cost Above Minimum$0$0$2,540
Total Invoice$56,981$34,439$36,750
Adjustments for Features-1,564-720
Feature-Adjusted Total Invoice$55,417$34,367$36,750
Cost Above Minimum$0$0$2,383

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Features Comparison: Cadillac STS vs. Buick Regal

Model Year200720132013
ModelSTSRegalRegal
TrimV8TurboGS
Body4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
6-speed manually-shiftable automatic$1100$1100$1100
RWD$0  
FWD $0$0
Accessories 
AC power outlet $100$100
Heated steering wheel$100$100 
Tilt/telescoping steering wheel, manual $250$250
Tilt/telescoping steering wheel, power$350  
Brakes, Airbags, and Other Safety 
Obstacle detection, front  $150
Rear side airbags $300$300
Rollover sensor $50$50
Climate Control 
Rain-sensing wipers$175  
Rear air vents $100$100
Rear air vents with manual controls$150  
Variable intermittent wipers $75$75
Drivetrain 
Limited-slip rear differential$300  
Exterior 
Body kit  $0
Laminated front side windows$200  
Rear spoiler$200  
Infotainment 
App support $0$0
Aux input $50$50
Bluetooth audio streaming $25$25
CD changer, in-dash$325  
CD player $125$125
DVD-compatible player$0  
MP3-compatible player $50$50
Rear seat audio controls$25  
Voice control for external devices $0$0
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75  
Auto-dimming headlights$200  
Compass $0$0
Fog lights$125$125 
Headlight washers$50  
Seats and Interior Trim 
Cooled or ventilated front seats$300  
Folding second row seats $300$300
Heated second row seats$200  
Leather-wrapped steering wheel $150$150
Memory system, driver seat$200  
Wood trim$300  
Wood/leather-wrapped steering wheel$150  
Suspension, Wheels, and Tires 
Alloy wheels $350 
Auto-leveling rear shocks$200  
Electronic systems calibration selector $200$200
Performance steering system (optional)$0  
Polished alloy wheels$350 $350
Sport suspension (upgrade)$0 $0
Total Value of Features$5,075$3,450$3,375
Value of Feature Adjustments$1,700$75$0
Value of Feature Adjustments-1,564-720

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See a complete comparison of Cadillac STS vs. Buick Regal features.

Specifications Comparison: Cadillac STS vs. Buick Regal

Model Year20072013
ModelSTSRegal
Body4dr Sedan4dr Sedan
Wheelbase116.4 in107.8 in
Length196.3 in190.2 in
Width72.6 in73.1 in
Height57.6 in58.4 in
Curb Weight3,961 lb.3,601 lb.
Fuel Capacity17.0 gal.15.8 gal.
Row 1 Headroom38.7 in38.8 in
Row 1 Shoulder Room58.6 in56.7 in
Row 1 Hip Room54.6 in55.4 in
Row 1 Legroom42.6 in42.1 in
Row 2 Headroom37.9 in36.8 in
Row 2 Shoulder Room57.4 in54.4 in
Row 2 Hip Room55.6 in52.3 in
Row 2 Legroom38.3 in37.3 in
Cargo Volume13.8 ft311.1 ft3

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See a complete comparison of Cadillac STS vs. Buick Regal specs.

Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SG
FeatureValueRequested?
Adaptive shocks - electrical500Yes
235/50WR18 tires200No
255/45WR18 tires200No
Headlight washers50No
Auto-dimming headlights200No
Cooled or ventilated front seats300No
Xenon HID headlights500Yes
Limited-slip rear differential300No
Rear spoiler200No
Additional engine cooling0No
Power steering cooler0No
Performance steering system (optional)250No
Sport suspension (upgrade)250Yes
Performance braking system (optional)250No
Surround sound250Yes
DVD-compatible player0No
Rear seat audio controls25No
Voice control for nav and audio100Yes
Navigation system600Yes
Bluetooth cell phone link100Yes
Bose, 300W, 15 speakers (with subwoofer)350No
Total Requested230050%
Total Not Requested232550%

Option Package Details
Buick Regal Turbo

Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio75Yes
Speed limit information0No
Total Requested675100%
Total Not Requested00%
Premium 3 Package
FeatureValueRequested?
Adaptive shocks - electrical500Yes
245/40WR19 tires400No
Electronic systems calibration selector200No
Rear side airbags300No
Xenon HID headlights500Yes
Surround sound250Yes
Harman/Kardon, 336W, 9 speakers (with subwoofer)350No
Total Requested125050%
Total Not Requested125050%

Option Package Details
Buick Regal GS

Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio75Yes
Speed limit information0No
Total Requested675100%
Total Not Requested00%
255/35ZR20 tires
FeatureValueRequested?
255/35ZR20 tires400No
Polished alloy wheels350Yes
Total Requested35047%
Total Not Requested40053%

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