Quick summary
- BMW did not sell an X3 M or X3 M Competition for 2025; the range-topping model is now the X3 M50 xDrive.
- The M50 pairs a 3.0-liter inline-six with a 48-volt mild hybrid for 393 hp and 428 lb-ft.
- That is 110 hp below the old 503-hp X3 M Competition, which left the US lineup after 2024.
Short answer: there is no 2025 BMW X3 M. The X3 moved to a new generation for 2025, and its most powerful version is the X3 M50 xDrive — a 393-hp mild-hybrid inline-six rather than the 503-hp twin-turbo S58 that powered the old X3 M Competition. Anyone who wants that engine has to shop the 2020–2024 model years.
Is there a 2025 BMW X3 M?
No. The clearest evidence is the EPA’s own model list, because every car sold in the US has to be rated there. For 2024, BMW’s X3 entries include X3 M, X3 M Competition, and X3 M40i. For 2025 only two remain: X3 M50i xDrive and X3 xDrive30i. BMW’s own launch material for the new generation calls the M50 “the most powerful version of the new BMW X3,” which is the polite way of saying the full M car did not carry over.
This is a generation change rather than a quiet deletion. The fourth-generation X3 began its worldwide launch in the fourth quarter of 2024, with new four- and six-cylinder engines that all use 48-volt mild hybrid assistance.
| Spec | 2024 X3 M Competition | 2025 X3 M50 xDrive |
|---|---|---|
| Engine | 3.0-liter twin-turbo inline-6 (S58) | 3.0-liter turbo inline-6 with 48V mild hybrid |
| Output | 503 hp / 479 lb-ft | 393 hp / 428 lb-ft |
| Transmission | 8-speed automatic | 8-speed Steptronic automatic |
| Drivetrain | M xDrive all-wheel drive | xDrive all-wheel drive |
| EPA combined | 17 mpg | not comparable — see note below |
What the X3 M50 actually is
The M50 is an M Performance model, not a full M car, and the engineering reflects that. Its 3.0-liter inline-six makes 393 hp between 5,200 and 6,250 rpm and 428 lb-ft from 1,900 to 4,800 rpm, with a 48-volt system whose electric motor sits in the transmission and can either add output or take load off the engine. BMW Canada quotes 4.6 seconds to 100 km/h; US figures for 0–60 mph are marginally quicker because the benchmark is slower.
For context on where that sits in the range, the volume engine below it — the X3 30 xDrive — is a 2.0-liter four with 255 hp and 295 lb-ft, which BMW rates at 6.3 seconds to 100 km/h. The gap between the two is bigger than the badges suggest.
One number we are deliberately not quoting: the EPA’s current record for the 2025 X3 M50 lists the engine as a four-cylinder, which is wrong for a 3.0-liter six, so its fuel economy figures are not trustworthy enough to print next to the old car’s. The 2024 X3 M Competition’s 17 mpg combined is from a record that correctly describes a six.
Is 393 hp enough after a 503-hp X3 M?
It depends on what the old car was for. The X3 M Competition was a track-leaning SUV with a stiff ride and 17 mpg combined; the M50 trades 110 hp and 51 lb-ft for a mild-hybrid six that is calmer in traffic and far easier to live with. If the appeal was the S58 itself — the engine family shared with the M3 and M4 — then nothing in the 2025 catalog replaces it, and a used 2020–2024 X3 M is the only way to get it.
Either way the engine wants premium fuel, which on a turbocharged six is about resisting knock rather than adding energy; our octane guide explains the difference.
What to look at instead
If the X3 body style is the point, our X3 vs X4 comparison covers how the coupe-roofed X4 differs now that the X3 has moved on a generation. If the appeal was a naturally aspirated BMW six rather than an SUV, the older E90 and E92 328i delivers that character for a fraction of the money, with a short and predictable list of failure points.
Sources: BMW Canada press release for the all-new 2025 X3 (M50 and 30 xDrive outputs, 48V system, acceleration), BMW press history for the X3 M Competition’s 503 hp, and EPA fueleconomy.gov model lists and ratings, October 2026. Photos: Calreyn88 and Alexander-93 via Wikimedia Commons, CC BY-SA 4.0.
