The Cadillac CT4 vs. CT5 comparison is a straightforward matter of sedan preferences. Simply put, the midsize CT5 is the bigger model of the two, coming in at a higher price but with higher-end standard features and more available power. The CT4, meanwhile, is a fun-loving option that brings the iconic Cadillac style into the compact sports sedan segment.
The details are where things get more intricate; that's why the Bravo Cadillac team has created this Cadillac CT4 vs. CT5 side-by-side comparison guide for you to explore. Read on and see what sets these sedans apart, and then visit us to test-drive your winner.
The Cadillac CT5 vs. CT4 luxury sedan showdown begins with a similarity rather than a difference: Both sedans are built for a comfortable ride with handling precision, and each has the automaker's 237-horsepower 2.0-liter turbocharged four-cylinder engine as standard.
Differences in size, however, translate to differences in driving; the CT4, the smaller model, will be more nimble, while the larger CT5 will be smoother. Fuel efficiency is another difference. While 2WD (RWD for CT5 and FWD for CT4) efficiency is very similar, AWD is available on both models and is an area where efficiency notably differs.
With standard engines and AWD, the 2025 Cadillac CT5, specifically, will deliver an EPA-estimated 21/30 MPG (City/Highway),3 while the CT4 will provide an EPA-estimated 21/31 MPG (City/Highway).4
Upgraded engines widen the gap between Cadillac CT4 vs. CT5 performance specs. The CT4 can be enhanced with a 2.7-liter turbocharged engine, but with 310 horsepower, it isn't as strong as the CT5 sedan's available 335-horsepower 3.0-liter twin-turbocharged V-6 engine.
Regardless, you can count on either side of the Cadillac CT4 vs. CT5 comparison to be reliable and fun for years and years down the road, as both the 2025 Cadillac CT5 and 2025 Cadillac CT4 earned a "Great" J.D. Power Quality & Reliability score of 85 out of 100.1, 2
The difference between Cadillac CT4 and CT5 sedans can really be felt in their high-performance V-Series models.
The Cadillac V lineup is defined by motorsports-inspired performance, and with an enhanced version of the 3.0-liter V-6 powering the CT5-V with 360 horsepower and a 4.6-second 0-60 mph time, you'll certainly feel like you're on the track every time you let it rip. The CT4-V, meanwhile, has an enhanced version of the 2.7-liter dual-volute turbo engine that makes 325 horsepower and a 4.8-second 0-60 mph time.
The trump card of each sedan is its Blackwing model, but the new Cadillac CT5 for sale is considerably more special in this form. Why? It uses a 6.2-liter supercharged V-8 engine that's built by hand, makes 668 horsepower, achieves a 3.4-second 0-60 mph time, and can pair with a six-speed manual transmission.
The CT4-V Blackwing is also a performance beast with its 3.6-liter twin-turbo V-6, 472 horsepower, and 3.9-second 0-60 mph time, but compared to the CT5-V Blackwing, it comes in second place for extreme performance. It also does not offer a manual transmission, which can certainly sway performance-minded drivers who are comparing the Cadillac CT4 vs. CT5.
As mentioned, the new Cadillac CT4 for sale is the smaller model of the two.
The midsize Cadillac CT5 is 6.6 inches longer, 2.6 inches wider, and 1.2 inches taller than the compact Cadillac CT4. They do, however, have the same front-seat legroom, offering 42.4 inches to drivers. The rear seats are where things differ, as the CT5 has 37.9 inches of rear legroom while the CT4 has 33.4 inches.
Measuring Cadillac CT4 vs. CT5 trunk space will reveal further differences, as the CT5 offers 1.2 cubic-feet more cargo room. Do keep in mind, though, that the CT4 sedan's smaller size can make it easier to park.
| 2025 Cadillac CT5 | 2025 Cadillac CT4 | |
|---|---|---|
| Engine |
|
|
| Horsepower |
|
|
| Fastest 0-60 Time (Blackwing Model) | 3.4 sec | 3.9 sec |
| EPA-Estimated MPG (City/Highway – w/ AWD and standard engine) | 21 / 303 | 21 / 314 |
| J.D. Power Reliability Rating | Great – 85 out of 1001 | Great – 85 out of 1002 |
| Exterior Dimensions (Length/Width/Height) | 193.8 / 80.3 / 57.2 in | 187.2 / 77.7 / 56 in |
| Number of Seats | 5 | 5 |
| Front Legroom | 42.4 in | 42.4 in |
| Rear Legroom | 37.9 in | 33.4 in |
| Cargo Volume (Trunk) | 11.9 cu ft | 10.7 cu ft |
| Starting Price Relative To Other Model | Higher | Lower |
| Standard Upholstery | Leather | Inteluxe Synthetic Leather |
| 33-in LED Gauge/Infotainment Display | Standard | Not Available |
| Heated & Ventilated Front Seats | Standard | Available |
| Massage Function for Front Seats | Standard | Not Available |
| Bose® Premium Sound System | Not Available | Available |
| AKG® Studio Sound System | Standard | Not Available |
| Forward Collision Alert | Standard | Standard |
| Front Pedestrian Braking | Standard | Standard |
| LED Reflective Windshield Alert | Not Available | Standard |
| Enhanced Automatic Emergency Braking | Standard | Available |
To finish your Cadillac CT4 vs. CT5 comparison, consider the pricing and standard vs. available features of each sedan. In this regard, the CT5 will have more, but also cost more. For example, while the Cadillac CT4 interior comes standard with an advanced 8-inch infotainment screen, the CT5 has a 33-inch combined gauge cluster and infotainment display screen.
The CT4 can be configured to offer similar features, and as it has a lower starting price, things can be fairly equal if you take this route. But, with the CT5 offering undeniably higher-end features, such as standard massaging front seats, it can only be looked at as the more luxurious model.
That's not to say that even the base-trim CT4 isn't luxurious, though. Whether you compare its standard Inteluxe seats or available Bose® sound system to the competition, it stands out as a winner of the compact luxury sports sedan battle. The CT5 does the same in the midsize class.
While we could go on about the many Cadillac CT4 vs. CT5 technology features (such as Super Cruise, which both models offer), the best way to experience and compare these sedans is with an in-person tour at Bravo Cadillac, where we can help you get into your ideal luxury sedan with lease specials and more.
The main differences between the 2025 CT5 and CT4 are that the Cadillac CT5 is the larger model of the pair, offering more rear legroom and cargo space, higher-performance available upgrades, and more standard features, but at the cost of having a higher starting price. The Cadillac CT4, meanwhile, is a smaller luxury sedan with a lower starting price.
The CT5 is a larger sedan with more interior space than the CT4. However, the space for their front seats is fairly equal. For example, the CT5 has 11.9 cubic feet of cargo volume and 37.9 inches of rear legroom, while the CT4 has 10.7 cubic feet and 33.4 inches, respectively, but both sedans have the same 42.4-inch front-legroom measurement.
If you're focusing on the CT5 as you compare Cadillac CT4 vs. CT5 performance packages, you'll notice that the model offers you available engines like a 3.0-liter twin-turbo V-6 and a 6.2-liter supercharged V-8, plus a manual transmission; the CT4 doesn't offer these engines, but it does share other packages like the Carbon Fiber Package with the CT5.
1Reference to this third-party claim is solely for informational purposes and not to be relied upon. For details regarding this rating, visit https://www.jdpower.com/cars/2025/cadillac/ct4
2Reference to this third-party claim is solely for informational purposes and not to be relied upon. For details regarding this rating, visit https://www.jdpower.com/cars/2025/cadillac/ct5
3Based on EPA city estimate 21 / hwy estimate 30 for 2.0L turbo four-cylinder, AWD, and fuel tank capacity. Your range may be less.
4Based on EPA city estimate 21 / hwy estimate 31 for 2.0L turbo four-cylinder, AWD, and fuel tank capacity. Your range may be less.
