Buick Regal Vs. Cadillac CT5

Buick Regal Vs. Cadillac CT5

Need a luxurious sedan to cruise the Delray Beach area in but lack the funds for an all-out luxury car. The 2019 Buick Regal offers a delicate balance of luxury, performance, and pricing, making it a great fit for you. Find out how it stands up to one of the newest luxury cars on the market, the 2020 Cadillac CT5, below.


The Buick Regal went through a dramatic redesign in 2018, ushering a new, more European design and a new sportback body that replaced the trunk with a spacious liftback while retaining a sedan-like look. This look may not be as sporty and youthful as the Cadillac CT5, but that’s because the Regal caters to a more established crowd who isn’t looking for a flashy car that stands out in a crowd.

The Cadillac CT5 is all-new for 2020 and follows in the footsteps of the rest of the updated Caddy lineup with its sharp, sporty looks. This sedan is not for the weak of heart, as its bold looks require a commitment to getting plenty of stares for at least the next few years. And if you upgrade to the sportier CT5-V, you will get even more gawks.

In terms of footprint, the 2020 Cadillac CT5 is larger than the Regal in every key measurable, making the Buick a friendlier drive in city traffic and easier to park in tight spaces.


Measurement 2019 Buick Regal 2020 Cadillac CT5 Difference
Length 192.9 inches 193.8 inches -0.9 inches
Width 73.3 inches 74.1 inches -0.8 inches
Height 57.3 inches 57.2 inches +0.1 inches
Wheelbase 111.4 inches 116 inches -4.6 inches
Ground Clearance
Curb weight 3,748 to 4,270 pounds 3,660 to 3,975 pounds +88 to +295 pounds


Advantage: 2019 Buick Regal

  • Creative sportback design
  • Classy looks with minimal drama
  • Sporty GS model that’s still reserved
  • Smaller and easier to fit in tight spaces

Advantage: 2020 Cadillac CT5

  • Standout looks
  • Sportier V-Series


Inside, the 2020 Cadillac CT5 and 2019 Buick Regal are very similar in styling, as they both opt for swoopier designs that give them more upscale and sporty looks without being too over the top. Both models boast large touchscreens, though the Cadillac gets a 3-inch advantage with its standard 10-inch HD screen.


Despite falling short with its standard 7-inch touchscreen, the Buick Regal is still well-equipped for being a sub-luxury sedan. Its $25,995 base model includes upscale standard features like 4G LTE Wi-Fi hotspot, an eight-point digital compass, a seven-speaker AM/FM audio system, four USB ports, Android Auto, Apple CarPlay, and much more.

The 2020 Cadillac CT5 is a true luxury sedan, so even the limited information on its standard features shows its cabin is more packed with premium amenities like sound optimization, active noise cancellation, the Cadillac User Experience infotainment system with a rotary control, a 10-inch HD touchscreen, and a dual-mic, cloud-based natural voice recognition.

In terms of roominess, the CT5 wins in most areas, but the Regal has wider seats and more rear headroom. Where the Regal puts space between it and the CT5 is cargo room, as its sportback body offers up to 31.5 cubic feet of cargo room with the seats upright and an SUV-rivaling 60.7 cubes with the seats folded.


Measurement 2019 Buick Regal 2020 Cadillac CT5 Difference
Front headroom 38.8 inches 39 inches -0.2 inches
Front legroom 42.1 inches 42.4 inches -0.3 inches
Front shoulder room 56.9 inches 56.7 inches +0.2 inches
Front hip room 55.2 inches 53.7 inches +1.5 inches
Rear headroom 37.4 inches 36.6 inches +0.8 inches
Rear legroom 36.9 inches 37.9 inches 1 inch
Rear shoulder room 55.4 inches 55.7 inches -0.3 inches
Rear hip room 54.1 inches 53.7 inches +0.4 inches
Cargo room (std.) 31.5 cubic feet 11.9 cubic feet +19.6 cubic feet
Cargo room (max.) 60.7 cubic feet


Advantage: 2019 Buick Regal

  • Great features for the price
  • Wider seats
  • Massive cargo area

Advantage: 2020 Cadillac CT5

  • More legroom
  • Sportier feel
  • Standard active noise control


Under their respective hoods, the 2019 Buick Regal and 2020 Cadillac CT5 boast potent standard engines and wilder V-6 units for their performance variants. In the Regal, its standard 2.0-liter turbo four-cylinder engine pumps out 250 horsepower to the CT5’s 2.0-liter’s 237 horses. This gives the Regal a strong 5.6-second 0-to-60 sprint. There are no acceleration tests on the CT5 yet.


The Regal GS swaps out the four-cylinder for a 310-horsepower V-6 engine that cuts 0.2 seconds off its sprint time. The GS also boasts an adaptive suspension, upgraded brakes, all-wheel drive, and more to help it handle better.

The CT5-V makes the GS look like a mainstream family sedan with its twin-turbo V-6 engine that bangs out 355 horsepower and 400 pound-feet of torque. This juice routes through a 10-speed automatic transmission to the rear or all four wheels. Keeping this power in check is the Magnetic Ride Control 4.0 system, Brembo brakes, and summer-only tires. There are no 0-to-60 tests on the CT5-V yet.

2019 Buick Regal 2020 Cadillac CT5 Difference
Optional engine 2.0-liter turbo 4-cyl 2.0-liter turbo 4-cyl
Horsepower 250 hp at 5,400 rpm 237 hp at 5,000 rpm +13 hp
Torque 260 lb-ft at 2,000 to 5,200 rpm (FWD) /  295 lb-ft at 3,000 to 4,000 rpm (AWD) 258 lb-ft at 1,500 to 4,000 rpm +2 to +37 lb-ft
Transmission 9-spd automatic 10-spd automatic
Driveline FWD (std) / AWD (opt.) FWD
0-60 time 5.6 seconds TBD
MPG City 21 to 22 mpg TBD
MPG Highway 29 to 32 mpg TBD
MPG Combined 24 to 26 mpg TBD
Optional engine 3.6-liter V-6 (GS only) 3.0-liter turbo V-6 (CT5-V only)
Horsepower 310 hp at 6,800 rpm 335 hp at 5,600 rpm -25 hp
Torque 282 lb-ft at 5,200 rpm 400 lb-ft at 2,400 to 4,400 rpm -118 lb-ft
Transmission 9-spd automatic 10-spd automatic
Driveline AWD AWD
0-60 time 5.4 seconds TBD
MPG City 19 mpg TBD
MPG Highway 27 mpg TBD
MPG Combined 22 mpg TBD

Advantage: 2019 Buick Regal

  • More standard power
  • The GS is quick without being overwhelming

Advantage: 2020 Cadillac CT5

  • Sporty chassis in all trims
  • Wild CT5-V

Pricing and Features

The 2019 Buick Regal is available in six trims — Base, Preferred, Preferred II, Essence, Avenir, and GS — and their starting prices range from $25,995 to $39,995.


Four trim levels comprise the 2020 Cadillac CT5 lineup: Luxury, Premium Luxury, Sport, and CT5-V. Pricing is not available yet, but they should all start well north of the Regal.

2019 Buick Regal Key Features and Pricing by Trim

Base: $25,995

  • 2.0-liter turbocharged four-cylinder engine
  • Nine-speed automatic transmission
  • Electric parking brake
  • Automatic engine stop/start
  • Front-wheel drive
  • 17-inch five-spoke aluminum wheels
  • Daytime running lights
  • Acoustic front-side glass
  • Halogen headlights with automatic on/off
  • Heated power mirrors
  • LED taillights
  • Variable-intermittent windshield wipers
  • Four-way manual passenger’s seat
  • Six-way manual driver’s seat
  • 4G LTE Wi-Fi hotspot
  • 60/40 split-folding rear seats
  • Eight-point digital compass
  • Rear heating and cooling vents
  • Buick Connected Access capable
  • Buick Infotainment System
  • 7-inch touchscreen
  • Seven-speaker AM/FM audio system
  • Dual USB ports
  • Bluetooth audio streaming
  • Android Auto
  • Apple CarPlay
  • Two charge-only USB ports on the rear of the center console
  • Cruise control
  • Floor mats
  • Keyless unlock and ignition
  • Tilt and telescoping steering wheel
  • Power windows with one-touch-up/down front windows
  • Cloth seating
  • Illuminated vanity mirrors
  • Rearview camera
  • Onstar
  • Remote panic alarm
  • Teen driver
  • Theft deterrent content alarm


Preferred: $28,595

  • All Base features, plus
  • Spare tire
  • Six-way manual passenger’s seat
  • Eight-way power driver’s seat
  • Auto-dimming rearview mirror
  • Leather-wrapped steering wheel
  • Sill plates


Preferred II: $30,695

  • All Preferred features, plus
  • Electric power steering
  • 18-inch machine-faced aluminum wheels with painted pockets
  • Fog lights
  • 4.2-inch multicolor driver-information center
  • 8-inch high-resolution touchscreen
  • SiriusXM radio
  • Dual-zone automatic climate control
  • 40/20/40 flat-folding rear seat
  • Heated steering wheel
  • Interior ambient lighting
  • Remote ignition


Essence: $32,695

  • All Preferred II features, plus
  • Heated front seats
  • In-vehicle air ionizer
  • Eight-way power passenger’s seat
  • Leather seating


Avenir: $36,195

  • All Essence features, plus
  • 19-inch aluminum-alloy wheels
  • LED headlights with auto leveling
  • Cornering lights
  • Auto-dimming driver’s side mirror
  • Navigation
  • Bose eight-speaker audio system
  • HD Radio
  • Tire-inflator kit
  • Memory package
  • Wireless charging pad
  • Rear cross-traffic alert
  • Lane-change alert
  • Blind-spot monitoring
  • Rear parking sensors


GS: $39,995

  • All Essence features, plus
  • 3.6-liter V-6 engine
  • All-wheel drive with electronic dual-clutch rear axle
  • Brembo performance front brakes
  • Five-link rear suspension
  • Sport mode
  • Adaptive suspension
  • 19-inch aluminum wheels with Technical Gray accents
  • Auto-dimming outside mirror
  • Memory package
  • Tire-inflator kit
  • Active noise cancellation
  • Alloy sport pedals
  • Massaging front seats
  • Flat-bottom, leather-wrapped steering wheel
  • Manual thigh adjustment
  • Power front seat bolsters
  • Ventilated front seats
  • Front and rear parking sensors
  • Lane-change alert
  • Blind-spot monitoring
  • Rear cross-traffic alert


2020 Cadillac CT5 Key Features and Pricing by Trim*

Luxury: $TBD

  • 2.0-liter turbocharged four-cylinder engine
  • 10-speed automatic transmission
  • LED headlights and taillights
  • Sound optimization
  • Active noise cancellation
  • Cadillac User Experience infotainment system with rotary control
  • 10-inch HD touchscreen
  • Dual-mic, cloud-based natural voice recognition
  • Automatic emergency braking
  • Forward collision warning
  • Safety alert rear seat


Premium Luxury: $TBD

  • All Luxury features, plus
  • LED-illuminated outside door handles
  • LED interior ambient lighting
  • Wireless charging pad
  • Leather seating
  • Driver’s seat and outside mirror memory
  • Auto-dimming mirrors
  • Rear parking sensors
  • Lane-change alert
  • Blind-spot monitoring


Sport: $TBD

  • All Luxury features, plus
  • Sport grille, fascias, rocker panels, and spoiler
  • Brembo performance front brakes
  • 18-way adjustable sport-bolstered front seats
  • Carbon-fiber interior trim
  • Performance steering wheel
  • Magnesium paddle shifters
  • Wireless charging pad
  • Rear parking sensors
  • Lane-change alert
  • Blind-spot monitoring
  • Rear cross-traffic alert



  • 3.0-liter twin-turbo V-6 engine
  • 10-speed automatic transmission
  • Electronic limited-slip differential
  • Rear-wheel drive
  • V-Series-tuned Magnetic Ride Control 4.0
  • Performance traction management
  • Brembo front brakes
  • 19-inch wheels with summer-only tires
  • Dark exterior accents
  • Unique rear diffuser and quad-exit exhaust tips


*All key features are preliminary and incomplete until we near the CT5’s fall 2019 on-sale date.

Who Should Buy the 2019 Buick Regal?

Buyers looking for a luxurious sedan but have a limited budget will find the Regal offers a balance of cost and premium goodies. Plus, it looks great with no over-the-top design notes. Also, buyers who often haul carloads of cargo will love the massive cargo area the sportback design delivers.

Who Should Buy the 2020 Cadillac CT5?

Love standing out in a crowd and answering questions about your wild new car? The stylish and in-your-face 2020 CT5 is the car for you. And with the insane CT5-V, this rig can even satisfy the most discerning performance-car shoppers.


Whether you’re heading to Delray Beach to soak up some rays, Boca Raton for work, Boynton Beach to drop the kids off for a party, or to Deerfield to meet family, the 2019 Regal will get you there with style. Stop by Delray Buick GMC today to test drive the 2019 Buick Regal and see what it offers you. If you can’t make it to our Delray Beach showroom today, swing by our online inventory page to see our in-stock Regal models and schedule a test drive for later.



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