Buick Regal Buick Regal 2018 Cadillac CT6 Cadillac CT6 2018

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Buick Regal vs. Cadillac CT6 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 CT6 Invoice Comparison

Lowest Total Price: $45,040

Buick Regal GS   
Difference: $22,510

Lowest Total Invoice: $43,021

Buick Regal GS   
Difference: $21,126

Calculate Payments

  Down Payment Interest Rate Term
Model Year201820182018
ModelRegalCT6CT6
TrimGSPremium LuxuryPlatinum
Body4dr Hatch4dr Sedan4dr Sedan
Base Price $39,065 $65,295 $84,295
Base Invoice $37,502 $62,030 $80,080
Appearance Package 485    
Sights and Sounds Package 945    
Driver Confidence Package #2 1,690    
Metallic paint (extra cost) 395 625  
Cargo organizer 140 140 140
Illuminated door sill trim plates 395    
Sunroof 1,000    
Rear spoiler   495 495
Cargo net     60
Appearance Package 441    
Sights and Sounds Package 860    
Driver Confidence Package #2 1,538    
Metallic paint (extra cost) 359 556  
Cargo organizer 127 125 125
Illuminated door sill trim plates 359    
Sunroof 910    
Rear spoiler   441 441
Cargo net     53
Options (change) 5,050 1,260 695
Options (change) 4,594 1,122 619
Destination 925 995 995
Total Price $45,040 $67,550 $85,985
Total Invoice $43,021 $64,147 $81,694

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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 CT6 dealer quotes from dealers using our car quote form.

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TrueDelta Value Comparison: Buick Regal vs. Cadillac CT6

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $21,775
TrueDelta Adjusted Invoice Difference: $20,428
Model Year201820182018
ModelRegalCT6CT6
TrimGSPremium LuxuryPlatinum
Body4dr Hatch4dr Sedan4dr Sedan
Engine310hp V6335hp V6335hp V6
TransmissionT9T8T8
DrivetrainAWDAWDAWD
EPA Fuel Economy (city/highway)/ MPG/ MPG/ MPG
Audio (watts, speakers)?, 8?, 10?, 34
Tire (rear if not all the same)245/40-19245/45-19245/40-20
Total Price$45,040$67,550$85,985
Adjustments for Features0-735-11,255
Feature-Adjusted Total Price$45,040$66,815$74,730
Cost Above Minimum$0$0$7,915
Total Invoice$43,021$64,147$81,694
Adjustments for Features0-698-10,693
Feature-Adjusted Total Invoice$43,021$63,449$71,001
Cost Above Minimum$0$0$7,552

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Features Comparison: Buick Regal vs. Cadillac CT6

Model Year201820182018
ModelRegalCT6CT6
TrimGSPremium LuxuryPlatinum
Body4dr Hatch4dr Sedan4dr Sedan
Transmission and Drivetrain 
9-speed manually-shiftable automatic$1400  
8-speed manually-shiftable automatic $1300$1300
AWD$1700$1700$1700
Accessories 
AC power outlet $100$100
Adaptive cruise control, all-speed$850 $850
Cruise control $150 
Electronic engine sound enhancement  $0
Hands-free trunk or liftgate $100$100
Power trunk closer $350$350
Semi-automated parking system $500$500
Sunshades, second row $125$125
Tilt/telescoping steering wheel, manual$250  
Tilt/telescoping steering wheel, power $350$350
Brakes, Airbags, and Other Safety 
Around view cameras $500$500
Automatic braking, high-speed or partial$200 $200
Backup collision intervention  $150
Hands-free driving on limited-access highways  $1000
Lane departure prevention, steering-based$200  
Lane keeping assist $400$400
Night vision  $1750
Rear side airbags$300  
Rearview camera$200  
Rollover sensor$50  
Surround view video recorder $50$50
Temporary spare tire $150$150
Cargo Management 
Cargo cover$75  
Cargo net$40 $40
Rear seat pass-through $100$100
Climate Control 
Ionizing air filtration  $50
Rain-sensing wipers $175$175
Rear air vents$100$100 
Rear air vents with automatic controls  $250
Rear dual-zone climate control  $125
Variable intermittent wipers$75  
Drivetrain 
Active rear differential$500  
Engine / Motor 
Automatic start / stop $150$150
Exterior 
Active grille shutters $0$0
Body kit$0  
Painted brake calipers (optional)$0  
Panoramic sunroof $1200$1200
Sunroof$900  
Infotainment 
Entertainment system with dual headrest screens  $1200
HDMI port  $25
Streaming video device  $30
Streaming video support  $25
Surround sound $250$250
Traffic information $25$25
Instruments, Lights, and Mirrors 
Approach detection $25$25
Auto-dimming headlights $200$200
Compass$0  
Performance meter$150  
Power-folding mirrors $50$50
Rear camera mirror $200$200
Seats and Interior Trim 
Cooled or ventilated second row seats  $200
Folding second row seats$300  
Heated second row seats $200$200
Leather door panel trim  $250
Manual thigh support length adjuster, driver seat$50  
Manual thigh support length adjuster, passenger seat$50  
Massage, driver seat$100 $100
Massage, passenger seat$100 $100
Massage, second row seats  $150
Memory system, passenger seat $150$150
Metal pedals$75  
Power 4-way lumbar adjuster, second row seats  $225
Power recliner, second row seats  $150
Power seatback bolsters, driver seat$100  
Power seatback bolsters, passenger seat$100  
Power thigh support length adjuster, driver seat  $100
Power thigh support length adjuster, passenger seat  $100
Power tilt adjuster, second row seats  $150
Power upper seatback recliner, driver seat  $100
Power upper seatback recliner, passenger seat  $100
Synthetic suede headliner  $650
Upholstered instrument panel $300 
Upholstered instrument panel, leather  $1000
Wood trim $300$300
Suspension, Wheels, and Tires 
Adaptive dampers - electrical$500 $500
Electronic systems calibration selector$200  
Rear wheel steering  $1500
Transmission 
Steering-wheel-mounted transmission controls $100$100
Total Value of Features$8,565$9,300$19,820
Value of Feature Adjustments$0$735$11,255
Value of Feature Adjustments0-698-10,693

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Specifications Comparison: Buick Regal vs. Cadillac CT6

Model Year20182018
ModelRegalCT6
Body4dr Hatch4dr Sedan
Wheelbase111.4 in122.4 in
Length192.9 in204.0 in
Width73.3 in74.0 in
Height57.3 in57.9 in
Curb Weight4,082 lb.3,648 lb.
Fuel Capacity16.3 gal.19.5 gal.
Row 1 Headroom38.8 in40.1 in
Row 1 Shoulder Room56.9 in58.3 in
Row 1 Hip Room55.2 in55.8 in
Row 1 Legroom42.1 in42.3 in
Row 2 Headroom37.4 in38.0 in
Row 2 Shoulder Room55.4 in56.1 in
Row 2 Hip Room54.1 in53.4 in
Row 2 Legroom36.9 in40.4 in
Cargo Volume,
Minimum
31.5 ft315.3 ft3
Cargo Volume,
Maximum
60.7 ft315.3 ft3

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Option Package Details
Buick Regal GS

Appearance Package
FeatureValueRequested?
Cornering lights50Yes
LED headlights1000Yes
Wireless charging station75Yes
Total Requested1125100%
Total Not Requested00%
Sights and Sounds Package
FeatureValueRequested?
Navigation system600Yes
Bose, 8 speakers (with subwoofer)350No
Voice control for nav and audio75Yes
HD radio50Yes
Speed limit information0No
Total Requested72567%
Total Not Requested35033%
Driver Confidence Package #2
FeatureValueRequested?
Head-up display (HUD)350Yes
Radar- or camera-based collision preparation system0Yes
Lane departure warning200Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200Yes
Automatic braking, high-speed or partial200Yes
Forward collision warning200Yes
Lane departure prevention, steering-based200Yes
Pedestrian detection50Yes
Following distance indicator25Yes
Total Requested2125100%
Total Not Requested00%

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