Buick Regal Buick Regal 2018 Cadillac STS Cadillac STS 2011

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Buick Regal vs. Cadillac STS 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.

Buick Regal vs. Cadillac STS Invoice Comparison

Lowest Total Price: $42,815

Buick Regal GS   
Difference: $16,325

Lowest Total Invoice: $40,997

Buick Regal GS   
Difference: $14,454

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182011
ModelRegalSTS
TrimGSLuxury
Body4dr Hatch4dr Sedan
Base Price $39,065 $50,820
Base Invoice $37,502 $48,024
Sights and Sounds Package 945  
Appearance Package 485  
Metallic paint (extra cost) 395  
Sunroof 1,000 1,200
Luxury Level Two Package   3,950
AWD   1,900
Performance braking system (optional)   395
Sights and Sounds Package 860  
Appearance Package 441  
Metallic paint (extra cost) 359  
Sunroof 910 1,056
Luxury Level Two Package   3,476
AWD   1,672
Performance braking system (optional)   348
Options (change) 2,825 7,445
Options (change) 2,570 6,552
Destination 925 875
Total Price $42,815 $59,140
Total Invoice $40,997 $55,451

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

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TrueDelta Value Comparison: Buick Regal vs. Cadillac STS

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $19,930
TrueDelta Adjusted Invoice Difference: $17,906
Model Year20182011
ModelRegalSTS
TrimGSLuxury
Body4dr Hatch4dr Sedan
Engine310hp V6302hp V6
TransmissionT9T6
DrivetrainAWDAWD
EPA Fuel Economy (city/highway)19/27 MPG17/26 MPG
Audio (watts, speakers)?, 8300, 15
Tire (rear if not all the same)245/40-19235/50-17
Total Price$42,815$59,140
Adjustments for Features-3,6050
Feature-Adjusted Total Price$39,210$59,140
Total Invoice$40,997$55,451
Adjustments for Features-3,4520
Feature-Adjusted Total Invoice$37,545$55,451

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Features Comparison: Buick Regal vs. Cadillac STS

Model Year20182011
ModelRegalSTS
TrimGSLuxury
Body4dr Hatch4dr Sedan
Transmission and Drivetrain 
9-speed manually-shiftable automatic$1400 
6-speed manually-shiftable automatic $1100
AWD$1700$1700
Accessories 
Active noise reduction$0 
Remote app$25 
Tilt/telescoping steering wheel, manual$250 
Tilt/telescoping steering wheel, power $350
Brakes, Airbags, and Other Safety 
Blind spot warning system$200 
Cross-traffic warning, rear$100 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Obstacle detection, front$150 
Rear side airbags$300 
Rearview camera$200 
Rollover sensor$50 
Safety key$5 
Vehicle health reports$0 
Cargo Management 
Cargo cover$75 
Rear seat pass-through $100
Climate Control 
Automatic air recirculation $100
Rear air vents$100 
Rear air vents with manual controls $150
Drivetrain 
Active rear differential$500 
Exterior 
Body kit$0 
Painted brake calipers (optional)$0 
Rear spoiler$200 
Infotainment 
4G LTE connectivity$0 
Android Auto support$100 
App support$0 
Apple CarPlay support$100 
Aux input$50 
Bluetooth audio streaming$25 
CD changer, in-dash $325
DVD-compatible player $0
HD radio$50 
Rear seat audio controls $25
SMS text-to-speech reader$25 
Surround sound $250
USB port$25 
Voice control for external devices$0 
Wi-Fi hotspot$50 
Wireless charging station$75 
Instruments, Lights, and Mirrors 
Auto-dimming headlights $200
Cornering lights$50 
Fog lights $125
Headlight washers $50
Interior ambient lighting$150 
Large color reconfigurable instrument cluster display$250 
LED headlights$1000 
Performance meter$150 
Xenon HID headlights $500
Seats and Interior Trim 
Folding second row seats$300 
Heated second row seats $200
Leather-wrapped steering wheel$150 
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Massage, driver seat$100 
Massage, passenger seat$100 
Metal pedals$75 
Power seatback bolsters, driver seat$100 
Power seatback bolsters, passenger seat$100 
Wood trim $300
Wood/leather-wrapped steering wheel $150
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 
Alloy wheels$350 
Electronic systems calibration selector$200 
Polished alloy wheels $350
Total Value of Features$9,580$5,975
Value of Feature Adjustments$3,605$0
Value of Feature Adjustments-3,4520

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Specifications Comparison: Buick Regal vs. Cadillac STS

Model Year20182011
ModelRegalSTS
Body4dr Hatch4dr Sedan
Wheelbase111.4 in116.4 in
Length192.9 in196.7 in
Width73.3 in72.6 in
Height57.3 in57.6 in
Curb Weight4,270 lb.4,125 lb.
Fuel Capacity16.3 gal.17.0 gal.
Row 1 Headroom38.8 in38.7 in
Row 1 Shoulder Room56.9 in58.6 in
Row 1 Hip Room55.2 in54.6 in
Row 1 Legroom42.1 in42.6 in
Row 2 Headroom37.4 in37.9 in
Row 2 Shoulder Room55.4 in57.4 in
Row 2 Hip Room54.1 in55.6 in
Row 2 Legroom36.9 in38.3 in
Cargo Volume,
Minimum
31.5 ft313.8 ft3
Cargo Volume,
Maximum
60.7 ft313.8 ft3

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Option Package Details
Buick Regal GS

Sights and Sounds Package
FeatureValueRequested?
Navigation system600Yes
Bose, 8 speakers (with subwoofer)350No
Voice control for nav and audio75Yes
HD radio50No
Speed limit information0No
Total Requested67563%
Total Not Requested40037%
Appearance Package
FeatureValueRequested?
Cornering lights50No
LED headlights1000No
Wireless charging station75No
Total Requested00%
Total Not Requested1125100%

Option Package Details
Cadillac STS Luxury

AWD
FeatureValueRequested?
AWD0Yes
235/50R17 tires400No
Total Requested00%
Total Not Requested400100%
Luxury Level Two Package
FeatureValueRequested?
Xenon HID headlights500Yes
Headlight washers50No
Auto-dimming headlights200No
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 Requested120058%
Total Not Requested87542%

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