Cadillac STS Cadillac STS 2006 Buick Regal Buick Regal 2012

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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: $35,700

Buick Regal Turbo   
Difference: $23,280

Lowest Total Invoice: $34,156

Buick Regal Turbo   
Difference: $19,434

Calculate Payments

  Down Payment Interest Rate Term
Model Year2006200620122012
ModelSTSSTSRegalRegal
TrimV8STS-VTurboGS
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Base Price $47,520 $73,070 $30,260 $34,835
Base Invoice $43,956 $67,704 $29,050 $33,442
Preferred Equipment Group 1SF 10,740      
Sunroof   1,200 1,000 1,000
Premium 3 Package     2,660  
Navigation system     895 895
255/35ZR20       700
Preferred Equipment Group 1SF 8,914      
Sunroof   996 880 880
Premium 3 Package     2,553  
Navigation system     788 788
255/35ZR20       616
Options (change) 10,740 1,200 4,555 2,595
Options (change) 8,914 996 4,221 2,284
Destination 720 720 885 885
Gas Tax 0 2,100 0 0
Total Price $58,980 $77,090 $35,700 $38,315
Total Invoice $53,590 $71,520 $34,156 $36,611

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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 Buick Regal dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Cadillac STS vs. Buick Regal

Lowest Adjusted Price and Invoice: Buick Regal Turbo
TrueDelta Adjusted Price Difference: $21,880
TrueDelta Adjusted Invoice Difference: $18,206
Model Year2006200620122012
ModelSTSSTSRegalRegal
TrimV8STS-VTurboGS
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Engine320hp V8469hp V8220hp I4270hp I4
TransmissionT5T6T6M6
DrivetrainRWDRWDFWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG/ MPG
Audio (watts, speakers)300, 15300, 15336, 9336, 9
Tire (rear if not all the same)235/50-17255/45-18245/40-19255/35-20
Total Price$58,980$77,090$35,700$38,315
Adjustments for Features-2,325-2,790-9250
Feature-Adjusted Total Price$56,655$74,300$34,775$38,315
Cost Above Minimum$0$17,645$0$3,540
Total Invoice$53,590$71,520$34,156$36,611
Adjustments for Features-2,113-2,588-8850
Feature-Adjusted Total Invoice$51,477$68,932$33,271$36,611
Cost Above Minimum$0$17,455$0$3,340

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Features Comparison: Cadillac STS vs. Buick Regal

Model Year2006200620122012
ModelSTSSTSRegalRegal
TrimV8STS-VTurboGS
Body4dr Sedan4dr Sedan4dr Sedan4dr Sedan
Transmission and Drivetrain 
5-speed manually-shiftable automatic$1000   
6-speed manually-shiftable automatic $1100$1100 
6-speed manual   $150
RWD$0$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$350  
Brakes, Airbags, and Other Safety 
Obstacle detection, front   $150
Rear side airbags  $300$300
Rollover sensor  $50$50
Tires, run-flat $150  
Climate Control 
Heated windshield washer nozzles $15  
Rain-sensing wipers$175$175  
Rear air vents  $100$100
Rear air vents with manual controls$150$150  
Variable intermittent wipers  $75$75
Drivetrain 
Limited-slip rear differential$300$300  
Exterior 
Body kit   $0
Laminated front side windows$200$200  
Rear spoiler$200$200  
Infotainment 
Aux input  $50$50
CD changer, in-dash$325$325  
CD player  $125$125
DVD-compatible player$0$0  
MP3-compatible player  $50$50
Satellite radio  $200$200
Telematics service, such as OnStar$200$200  
Telematics service, such as OnStar, with navigation  $225$225
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75$75  
Auto-dimming headlights$200$200  
Compass  $0$0
Fog lights$125$125$125 
Headlight washers$50$50  
Seats and Interior Trim 
Cooled or ventilated front seats$300   
Folding second row seats  $300$300
Heated second row seats$200$200  
Leather-wrapped steering wheel $150$150$150
Memory system, driver seat$200$200  
Synthetic suede inserts in leather seating surfaces $0  
Upholstered instrument panel, leather $1000  
Wood trim$300$300  
Wood/leather-wrapped steering wheel$150   
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 $500$500
Alloy wheels  $350 
Auto-leveling rear shocks$200$200  
Electronic systems calibration selector  $200$200
Performance steering system (optional) $0  
Polished alloy wheels$350$350 $350
Sport suspension (upgrade)$0$0 $0
Total Value of Features$5,650$6,115$4,250$3,325
Value of Feature Adjustments$2,325$2,790$925$0
Value of Feature Adjustments-2,113-2,588-8850

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Specifications Comparison: Cadillac STS vs. Buick Regal

Model Year20062012
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.18.0 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 ft314.2 ft3

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Option Package Details
Cadillac STS V8

Preferred Equipment Group 1SF
FeatureValueRequested?
Sport suspension (upgrade)250Yes
Adaptive shocks - electrical500Yes
Cooled or ventilated front seats300No
Sunroof900Yes
Limited-slip rear differential300No
Rain-sensing wipers100No
Xenon HID headlights500Yes
Rear spoiler200No
Wood/leather-wrapped steering wheel0No
Bluetooth cell phone link100Yes
Headlight washers50No
235/50VR17 tires200No
255/45VR17 tires200No
Auto-dimming headlights200No
Universal garage door opener100Yes
Heated steering wheel100No
Interior air filter0Yes
Cargo net40Yes
Surround sound250Yes
DVD-compatible player0No
Voice control for nav and audio100Yes
Rear air vents with manual controls50No
Navigation system600Yes
Heated second row seats200No
Bose, 300W, 15 speakers (with subwoofer)350No
CD changer, in-dash200No
Power 4-way lumbar adjuster, driver seat150Yes
Power 4-way lumbar adjuster, passenger seat150Yes
Memory system, driver seat200No
Polished alloy wheels0Yes
Wood trim300No
Heated front seats200Yes
Total Requested384057%
Total Not Requested295043%

Option Package Details
Buick Regal Turbo

Navigation system
FeatureValueRequested?
Navigation system600Yes
Voice control for nav and audio100Yes
Speed limit information0No
Total Requested700100%
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 audio100Yes
Speed limit information0No
Total Requested700100%
Total Not Requested00%
255/35ZR20 tires
FeatureValueRequested?
255/35ZR20 tires400No
Polished alloy wheels350Yes
Total Requested35047%
Total Not Requested40053%

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