2026 Cadillac CT5 vs. 2026 BMW 3 Series
Cadillac CT5
vs.
BMW 3 Series Comparison
Luxury Sport Sedan Comparison
When you think of luxury sport sedans, few brands carry as much weight as Cadillac and BMW, and for good reason. They’ve been two of the most iconic automakers in the game for years, and the Cadillac CT5 and BMW 3 Series are two shining examples of why.
So, which one is better? They have some key differences so there’s no one size fits all answer, but let’s compare them to figure out the best option for shoppers in Columbia, SC.
Cadillac CT5 vs. BMW 3 Series: Spec Highlights
| 2026 Cadillac CT5 | 2026 BMW 3 Series | |
|---|---|---|
| Starting price | $49,200 | $48,000 |
| Standard horsepower | 237 hp | 255 hp |
| Max horsepower | 668 hp (CT5-V Blackwing) | 523 hp (M3 Competition) |
| Length | 193.8 in | 185.9 in |
| Heated and ventilated seats | Standard | Heated only |
| Google built-in | Standard | Unavailable |
| Wi-Fi | Available | Available |
Cadillac CT5 vs. BMW 3 Series: Specs and Engines
The 2026 Cadillac CT5 lineup has three available models to choose from, each with their own unique powertrains and specs:
- 2026 Cadillac CT5: 237 hp & 258 lb-ft of torque
- 2026 Cadillac CT5-V: 360 hp & 405 lb-ft of torque
- 2026 Cadillac CT5-V Blackwing: 668 hp & 659 lb-ft of torque
Meanwhile, the 2026 BMW 3 Series has four available models:
- 2026 BMW 330i: 255 hp & 295 lb-ft of torque
- 2026 BMW M340i: 386 hp & 398 lb-ft of torque
- 2026 BMW M3: 473 hp & 406 lb-ft of torque
- 2026 BMW M3 Competition: 503 to 523 hp & 479 lb-ft of torque
Most models can also be optioned with either rear-wheel drive or all-wheel drive, except for the Cadillac CT5-V Blackwing and base BMW M3, which are only available with RWD.
Overall, critics agree that the Cadillac CT5 offers a smoother and more comfortable highway demeanor, while the BMW 3 Series lineup focuses on tighter cornering and driver-focused dynamics. It’s also worth noting that, while the 3 Series has a bit more power in its base- and mid-level models, the Cadillac CT5-V Blackwing has the most raw power of the bunch by far.
Cadillac CT5 vs. BMW 3 Series: 0 to 60
Now that we’ve covered each engine’s specs, let’s take a look at how it affects their speed in practice. Here is each model’s quickest 0 to 60 time from slowest to fastest:
| Model | 0 to 60 |
|---|---|
| Cadillac CT5 | 6.6 seconds |
| BMW 330i | 5.4 seconds |
| Cadillac CT5-V | 4.6 seconds |
| BMW M340i | 4.1 seconds |
| BMW M3 | 4.1 seconds |
| BMW M3 Competition | 3.4 seconds |
| Cadillac CT5-V Blackwing | 3.4 seconds |
Cadillac CT5 vs. BMW 3 Series: Size and Dimensions
The Cadillac CT5 is a mid-size luxury car, while the BMW 3 Series is a compact luxury sedan, which means the CT5 has significantly more space for second row passengers and cargo, while the 3 Series has a smaller frame designed to maximize performance and acceleration.
Cadillac CT5 vs. BMW 3 Series: Interior and Tech
The CT5 comes standard with the 33-inch Horizon Display™, a singular infotainment hub that spans about two-thirds of the dash and handles everything from media and navigation to diagnostics and driver assistance features. Other standard features include Google built-in, an AKG Studio sound system, 5G in-vehicle Wi-Fi, and heated and ventilated front seats with massage function.
The 3 Series gets a standard BMW Curved Display, which consists of a 12.3-inch driver info center and 14.9-inch center touch screen display, both of which run BMW Operating System 8.5. Also standard is wireless Apple CarPlay®/Android Auto™, wireless device charging, a HiFi sound system, 5G Wi-Fi capability, and heated front seats.
Cadillac CT5 vs. BMW 3 Series: Safety and Reliability
Both the 2026 Cadillac CT5 and 2026 BMW 3 Series have five-star safety ratings from the NHTSA, which makes them some of the safest luxury cars on the road today. They also both have a wealth of standard driver assistance systems.
Regarding reliability, JD Power gives the 2026 Cadillac CT5 an 83/100 for reliability, while the 2026 BMW 3 Series earns an 81/100, which puts them both above average. However, in their most recent Vehicle Dependability Study, Cadillac ranked as the 4th most reliable brand overall, while BMW came in much lower at 11th place.
Cadillac CT5 vs. BMW 3 Series: Price and Trims
Finally, let’s check out how much you can expect to pay for each model:
2026 Cadillac CT5 pricing:
| CT5 | $49,200 |
| CT5-V | $58,300 |
| CT5-V Blackwing | $98,900 |
2026 BMW 3 Series pricing:
| 330i | $48,000 |
| M340i | $62,300 |
| M3 | $79,300 |
| M3 Competition | $83,500 |
Frequently Asked Questions
Is the Cadillac CT5 or BMW 3 Series faster?
The entry-level 3 Series has a 0 to 60 time of 5.6 seconds, while the base CT5 does it in 6.6 seconds due to it being heavier and having slightly less power. However, the top-spec Cadillac CT5-V Blackwing and BMW M3 Competition both have a top 0 to 60 time of just 3.4 seconds.
Does the Cadillac CT5 or BMW 3 Series have more horsepower?
The base 3 Series has 255 horsepower, which is slightly higher than the base CT5’s 237 horsepower. However, the Cadillac CT5-V Blackwing’s supercharged 6.2-liter engine has 668 horsepower, which is much more than the top-level BMW M3 Competition, which has up to 523 horsepower.
Is the Cadillac CT5 or BMW 3 Series bigger?
The CT5 is a mid-size sedan, while the 3 Series is a compact, which means it’s significantly shorter and has less interior space, but some drivers may prefer a smaller body for its tighter cornering and driving dynamics.
Do the Cadillac CT5 and BMW 3 Series have AWD?
Yes, both are available with all-wheel drive, except in the Cadillac CT5-V Blackwing and base BMW M3 models, which are rear-wheel drive only.
Find the Cadillac CT5 for Sale near Blythewood, SC
Some shoppers may find the BMW’s sharp driving dynamics and interior appealing, but the CT5 offers a smoother, roomier ride with more standard features. Of course, the only way to know for sure is to try it out for yourself—visit our Cadillac dealership in Columbia, SC to browse new Cadillac CT5 models and enjoy great savings with our exclusive finance offers.
Contact us online or call (803) 757-4503 to schedule a Cadillac CT5 test drive today.
