Cadillac ATS Cadillac ATS 2018 Buick Regal Buick Regal 2015

We are 103,000+ car owners sharing real-world car information.

Join Us

Cadillac ATS 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 ATS vs. Buick Regal Invoice Comparison

Lowest Total Price: $42,245

Buick Regal GS   
Difference: $8,850

Lowest Total Invoice: $40,278

Buick Regal GS   
Difference: $8,144

Calculate Payments

  Down Payment Interest Rate Term
Model Year20182015
ModelATSRegal
TrimPremium PerformanceGS
Body4dr Sedan4dr Sedan
Base Price $47,295 $37,385
Base Invoice $44,930 $35,890
Driver Assist Package 1,300  
Metallic paint (extra cost) 595  
Cargo net 60  
Polished alloy wheels 850  
Driver Confidence Package   1,040
Sunroof   1,000
Adaptive cruise control, all-speed   1,195
255/35ZR20   700
Driver Assist Package 1,157  
Metallic paint (extra cost) 530  
Cargo net 53  
Polished alloy wheels 757  
Driver Confidence Package   915
Sunroof   880
Adaptive cruise control, all-speed   1,052
255/35ZR20   616
Options (change) 2,805 3,935
Options (change) 2,497 3,463
Destination 995 925
Total Price $51,095 $42,245
Total Invoice $48,422 $40,278

Return to top

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 ATS 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 ATS vs. Buick Regal

Lowest Adjusted Price and Invoice: Buick Regal GS
TrueDelta Adjusted Price Difference: $5,255
TrueDelta Adjusted Invoice Difference: $4,737
Model Year20182015
ModelATSRegal
TrimPremium PerformanceGS
Body4dr Sedan4dr Sedan
Engine335hp V6259hp I4
TransmissionT8T6
DrivetrainRWDFWD
EPA Fuel Economy (city/highway)/ MPG/ MPG
Audio (watts, speakers)?, 10?, 9
Tire (rear if not all the same)225/40-18255/35-20
Total Price$51,095$42,245
Adjustments for Features-3,5950
Feature-Adjusted Total Price$47,500$42,245
Total Invoice$48,422$40,278
Adjustments for Features-3,4070
Feature-Adjusted Total Invoice$45,015$40,278

Return to top

Features Comparison: Cadillac ATS vs. Buick Regal

Model Year20182015
ModelATSRegal
TrimPremium PerformanceGS
Body4dr Sedan4dr Sedan
Transmission and Drivetrain 
8-speed manually-shiftable automatic$1300 
6-speed manually-shiftable automatic $1100
RWD$0 
FWD $0
Accessories 
Active noise reduction$0 
Tilt/telescoping steering wheel, manual $250
Tilt/telescoping steering wheel, power$350 
Brakes, Airbags, and Other Safety 
Automatic braking, high-speed or partial$200 
Automatic braking, low-speed$200 
Backup collision intervention$150 
Knee airbag, driver$75 
Knee airbag, passenger$75 
Lane keeping assist$400 
Rollover sensor $50
Safety key$5 
Tires, run-flat$150 
Climate Control 
Rain-sensing wipers$175 
Variable intermittent wipers $75
Drivetrain 
Limited-slip rear differential$300 
Engine / Motor 
Automatic start / stop$150 
Exterior 
Active grille shutters $0
Body kit $0
Laminated front side windows$200 
Rear spoiler $200
Tow hook(s), front$40 
Infotainment 
Android Auto support$100 
Apple CarPlay support$100 
CD player $125
HD radio$50 
MP3-compatible player $50
Siri Eyes Free support $0
Surround sound$250 
Traffic information$25 
Wireless charging station$75 
Instruments, Lights, and Mirrors 
Auto-dimming driver-side mirror$75 
Auto-dimming headlights$200 
Head-up display (HUD)$350 
Large color reconfigurable instrument cluster display $250
Performance meter $150
Steering-linked headlights$150 
Seats and Interior Trim 
Coordinated climate control, front seats$0 
Manual thigh support length adjuster, driver seat$50 
Manual thigh support length adjuster, passenger seat$50 
Power seatback bolsters, driver seat$100 
Upholstered instrument panel$300 
Wood trim$300 
Suspension, Wheels, and Tires 
Electronic systems calibration selector $200
Transmission 
Steering-wheel-mounted transmission controls$100 
Total Value of Features$6,045$2,450
Value of Feature Adjustments$3,595$0
Value of Feature Adjustments-3,4070

Return to top

Specifications Comparison: Cadillac ATS vs. Buick Regal

Model Year20182015
ModelATSRegal
Body4dr Sedan4dr Sedan
Wheelbase109.3 in107.8 in
Length182.8 in190.2 in
Width71.1 in73.1 in
Height55.9 in58.4 in
Curb Weight3,374 lb.3,693 lb.
Fuel Capacity16.0 gal.18.0 gal.
Row 1 Headroom38.6 in38.8 in
Row 1 Shoulder Room55.2 in56.7 in
Row 1 Hip Room53.0 in55.4 in
Row 1 Legroom42.5 in42.1 in
Row 2 Headroom36.8 in36.8 in
Row 2 Shoulder Room53.9 in54.4 in
Row 2 Hip Room52.3 in52.3 in
Row 2 Legroom33.5 in37.3 in
Cargo Volume10.2 ft314.2 ft3

Return to top

Option Package Details
Cadillac ATS Premium Performance

Driver Assist Package
FeatureValueRequested?
Radar- or camera-based collision preparation system0Yes
Adaptive cruise control, all-speed700Yes
Automatic braking, low-speed200No
Automatic braking, high-speed or partial200No
Backup collision intervention150No
Total Requested70056%
Total Not Requested55044%

Option Package Details
Buick Regal GS

Adaptive cruise control, all-speed
FeatureValueRequested?
Adaptive cruise control, all-speed700Yes
Radar- or camera-based collision preparation system0Yes
Total Requested700100%
Total Not Requested00%
255/35ZR20 tires
FeatureValueRequested?
255/35ZR20 tires400No
Polished alloy wheels350Yes
Total Requested35047%
Total Not Requested40053%
Driver Confidence Package
FeatureValueRequested?
Memory system, driver seat200Yes
Lane departure warning system200Yes
Blind spot warning system200Yes
Rear cross-traffic detection100Yes
Forward collision warning200Yes
Following distance indicator25Yes
Total Requested925100%
Total Not Requested00%

Was this information useful?

We're glad we could help! Share this page:

We're so sorry! Tell us how we can improve it.

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