Alpina
B8
BMW
M8
Alpina B8 vs BMW M8: 2025 Comparison
The short answer
Based on available data, the BMW M8 comes out ahead of the Alpina B8 on fuel economy and power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Specs side by side
What owners say
B8
Overall
Owner sentiment is highly fragmented due to discussions covering two distinct generations separated by decades. For the classic E36-era B8 (based on the 3 Series), sentiment among long-term owners is heavily focused on maintenance, with the vehicle described as a "very rare 330ci" that requires diligent, specialized upkeep. The car is praised for its "magical" Alpina-tuned suspension offering a supple yet sporty ride.
Best version to buy
Insufficient owner data available to designate a best version. For the classic E36, one owner strongly recommends retaining all Alpina-specific parts, especially the springs, for the intended driving experience.
Known issues
- ⚠(Note: All issues below pertain specifically to the classic E36-generation Alpina B8 with the M60B46 V8 engine) Head gasket failure: Potential failure point; recommended to monitor via used oil analysis for elevated moisture.
M8
Overall
Mixed sentiment with a clear divide between appreciation for its capabilities and criticism of its character. The vehicle is widely acknowledged as extremely fast, comfortable, luxurious, and built to a high quality with tight assembly tolerances. It is consistently described as an excellent grand tourer that does everything well, offering a blend of performance, technology, and daily usability.
Best version to buy
Insufficient owner data available to declare a consensus "best" version (e.g., Coupe vs. Gran Coupe, Competition vs. base).
Known issues
- ⚠Lack of driving emotion/excitement: described as bland, boring, or lacking visceral feel despite high performance. Frequency: very frequent.
- ⚠Ignition coil and coolant hose failures: on the hot-V 4.4L V8 in related models (M6), noted as a potential age-related concern for the M8. Frequency: isolated.
- ⚠Ride quality: described as very stiff, to the point of compromising its grand touring comfort, especially when compared to the M850i. Frequency: recurrent.
The verdict
The BMW M8 is the better choice for most buyers.
It has better fuel economy on its best-equipped version than the Alpina B8, based on the data above. If power matters more to you than running costs, the Alpina B8 is worth a closer look instead.
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Frequently asked questions
Which is more reliable, the Alpina B8 or the BMW M8?
Owner reports show similar reliability sentiment for the Alpina B8 and the BMW M8. Check the known issues listed above for specific differences between the two.
Which is better for families, the Alpina B8 or the BMW M8?
The Alpina B8 seats more passengers than the BMW M8 on its catalogued best-equipped version. Body type also differs: the Alpina B8 is classed as a Coupe, the BMW M8 as a Coupe.
Which has better fuel economy, the Alpina B8 or the BMW M8?
The BMW M8 is more fuel-efficient on paper: 10.6 L/100km combined versus 11.8 L/100km for the Alpina B8, based on the best-equipped catalogued version of each.
Which is cheaper to maintain, the Alpina B8 or the BMW M8?
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.