Buick Regal vs. Cadillac ATS
iSeeCars' unbiased and data-driven comparison of the Buick Regal and Cadillac ATS contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the Buick Regal and the Cadillac ATS.
When we compare the Buick Regal's and the Cadillac ATS's specifications and ratings, the Buick Regal has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and interior volume. The Cadillac ATS has the advantage in the areas of fuel efficiency and base engine power. Based on this comparison of the Buick Regal's and the Cadillac ATS's specifications and ratings, the two cars are fairly comparable.
Pricing: A used 2017 Buick Regal ranges from $10,292 to $20,995 while a used 2017 Cadillac ATS is priced between $11,990 to $22,995.
Engine Power and Fuel Efficiency Comparison: For engine performance, the Buick Regal’s base engine makes 182 horsepower, and the Cadillac ATS base engine makes 272 horsepower. The Regal is rated to deliver an average of 23 miles per gallon, with a highway range of 540 miles. The ATS is rated to deliver an average of 25 miles per gallon, with a highway range of 496 miles.This gives the Cadillac ATS the advantage in fuel efficiency and the Buick Regal the advantage in maximum range. The Regal uses regular unleaded, and the ATS uses premium unleaded.
Passenger Space Comparison: The Buick Regal has the advantage of offering more interior volume, reflected in more front head room, front shoulder room, rear shoulder room, rear leg room, and cargo space. The Cadillac ATS has the advantage in the area of front leg room. The Buick Regal and Cadillac ATS are comparable in regards to rear head room.
New Car Pricing
Asking Price:
-
Starting MSRP:
$27,065
Category Avg Starting MSRP:
(Luxury Midsize Cars)
$54,696
Category Starting MSRP Range:
(Luxury Midsize Cars)
$27,065 - $119,800
New Car Pricing
Asking Price:
-
Starting MSRP:
$34,595
Category Avg Starting MSRP:
(Luxury Compact Cars)
$39,910
Category Starting MSRP Range:
(Luxury Compact Cars)
$21,065 - $64,000
Used Car Pricing
Avg Used Car Price:
$16,057
Price Range:
$10,292 - $20,995
Category Avg Price:
(Luxury Midsize Cars)
$26,041
Category Avg Price Range:
(Luxury Midsize Cars)
$16,057 - $49,853
# Used Cars for Sale Nationally:
86
Avg Mileage of Used Cars for Sale:
79,869
# Good or Great Deals:
35
Used Car Pricing
Avg Used Car Price:
$17,521
Price Range:
$11,990 - $22,995
Category Avg Price:
(Luxury Compact Cars)
$22,554
Category Avg Price Range:
(Luxury Compact Cars)
$12,380 - $46,213
# Used Cars for Sale Nationally:
98
Avg Mileage of Used Cars for Sale:
74,231
# Good or Great Deals:
49
Buick Regal Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
Cadillac ATS Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
Not available
Safety:
Not available
iSeeCars Reliability Insights for Buick Regal
Remaining Life Expectancy (years):
3.8
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
4.4
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
1.5 - 7.6
Chance of Reaching 200k Miles for a New Car:
6.8%
iSeeCars Reliability Insights for Cadillac ATS
Remaining Life Expectancy (years):
5.1
Typical Category Remaining Life Expectancy:
(Luxury Compact Cars)
4.2
Category Remaining Life Expectancy Range:
(Luxury Compact Cars)
1.7 - 7.4
Chance of Reaching 200k Miles for a New Car:
8.9%
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.2
Typical Category Recalls:
(Luxury Midsize Cars)
1.6
Category Range for Recalls:
(Luxury Midsize Cars)
0.9 - 12.5
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.4
Typical Category Recalls:
(Luxury Compact Cars)
2.7
Category Range for Recalls:
(Luxury Compact Cars)
0.9 - 9
Buick Regal Rankings
Not yet available
Cadillac ATS Rankings
Available Body Styles
Sedan
Available Body Styles
Coupe, Sedan
Available Drivetrain Options
Flex Fuel, Gasoline
Available Drivetrain Options
Gasoline
Buick Regal Trim Levels
Base, GS, Premium II, Sport Touring
Cadillac ATS Trim Levels
Not yet available
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
6 years / 70000 miles
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
6 years / 70000 miles
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
4 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
4 out of 5 Stars
2025 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Rollover Rating:
4 out of 5 Stars
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2025 NHTSA Overall Rating:
5 out of 5 Stars
2025 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2025 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
182 hp @ 6700 rpm
Torque:
172 foot-lbs @ 4900 rpm
Power-to-Weight Ratio (higher is better):
0.050 hp per pound
Base Drivetrain Specs
Horsepower:
272 hp @ 5500 rpm
Torque:
295 foot-lbs @ 3000 rpm
Power-to-Weight Ratio (higher is better):
0.081 hp per pound
Engine Specifications
Engine Size:
2.4 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
FWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
19 / 30 / 23
Range (city/hwy):
342 / 540 miles
Recommended Fuel Type:
Regular Unleaded
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
22 / 31 / 25
Range (city/hwy):
352 / 496 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Adaptive Cruise Control:
Available
Android Auto:
Available
Apple CarPlay:
Available
Heated Steering Wheel:
Available
Keyless Ignition:
Available
Parking Sensors:
Available
Sunroof/Moonroof:
Available
Air Suspension:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Internet Radio:
N/A
Massage Seats:
N/A
Paddle Shifters:
N/A
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wireless Smartphone Charging:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Available
Keyless Entry:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Adaptive Cruise Control:
Available
Android Auto:
Standard
Apple CarPlay:
Standard
Heated Steering Wheel:
Available
Keyless Ignition:
Standard
Parking Sensors:
Available
Sunroof/Moonroof:
Available
Air Suspension:
N/A
Automatic Parking:
N/A
Captain's seat:
N/A
Cooled/Ventilated Seats:
N/A
Front Bench Seats:
N/A
Internet Radio:
N/A
Massage Seats:
N/A
Paddle Shifters:
Available
Panoramic Sunroof/Moonroof
N/A
Power Lift Gate:
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Wireless Smartphone Charging:
Standard
Safety Features
Backup camera:
Standard
360-Degree Camera:
N/A
Blind Spot Monitoring:
N/A
Driver Attention Monitoring:
N/A
Forward Collision Warning:
N/A
Lane Departure Warning:
N/A
Lane Keeping Assist:
N/A
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Available
360-Degree Camera:
N/A
Blind Spot Monitoring:
Available
Driver Attention Monitoring:
N/A
Forward Collision Warning:
Available
Lane Departure Warning:
Available
Lane Keeping Assist:
Available
Pedestrian Detection:
N/A
Rear Cross-Traffic Alert:
Available
Rear Seat Reminder:
N/A
Interior Dimensions
Front Head Room:
38.8 inches
Front Leg Room:
42.1 inches
Front Shoulder Room:
56.7 inches
Rear Head Room:
36.8 inches
Rear Leg Room:
37.3 inches
Rear Shoulder Room:
54.4 inches
Cargo Space:
14.2 cubic feet
Overall Interior Volume:
96.8 cubic feet
Interior Dimensions
Front Head Room:
38.6 inches
Front Leg Room:
42.5 inches
Front Shoulder Room:
55.2 inches
Rear Head Room:
36.8 inches
Rear Leg Room:
33.5 inches
Rear Shoulder Room:
53.9 inches
Cargo Space:
10.4 cubic feet
Overall Interior Volume:
91.0 cubic feet
Exterior Dimensions
Curb Weight:
3605 lbs
Width:
73.1 inches
Height:
58.4 inches
Length:
190.2 inches
Wheelbase:
107.8 inches
Ground Clearance:
Not yet available
Exterior Dimensions
Curb Weight:
3373 lbs
Width:
71.1 inches
Height:
55.9 inches
Length:
182.8 inches
Wheelbase:
109.3 inches
Ground Clearance:
Not yet available
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.0 inches
Wheel Type:
aluminum alloy
Tire Size:
P235/50R18
Standard Wheel/Tire Information
Wheel Size:
17.0 x 8.0 inches
Wheel Type:
painted aluminum alloy
Tire Size:
P225/45R17
Exterior Colors
Black
Black Onyx / Ebony Twilight Metallic
Blue
Dark Sapphire Blue Metallic
Gray
Graphite Gray Metallic / Pepperdust Metallic
Red
Black Cherry Metallic / Crimson Red Tintcoat
Silver
Quicksilver Metallic
White
Summit White / White Frost Tricoat
Beige
Not available
Purple
Not available
Exterior Colors
Black
Black Raven / Stellar Black Metallic
Blue
Dark Adriatic Blue Metallic
Gray
Moonstone Metallic / Phantom Gray Metallic
Red
Red Obsession Tintcoat
Silver
Radiant Silver Metallic / Silver Moonlight Metallic
White
Crystal White Tricoat
Beige
Bronze Dune Metallic
Purple
Deep Amethyst Metallic
Interior Colors
Black
Ebony
Gray
Not available
Interior Colors
Black
Jet Black w/Jet Black Accents
Gray
Light Platinum w/Jet Black Accents