BMW Z4 M40i vs M4: Performance, Style, and Value Comparison
The BMW Z4 M40i and Z4 M4 represent two distinct pillars of BMW’s performance engineering, each appealing to different priorities in the coveted sports car segment. The Z4 M40i blends practicality with efficiency, offering a turbocharged inline-six engine producing 382 horsepower, paired with a 9-speed automatic and progressive handling. Its value-focused design emphasizes accessibility without sacrificing the Z4’s signature elegance and build quality.
In contrast, the Z4 M4 elevates performance to new heights with a more potent inline-six (or optional V8 in higher trims) generating up to 503 horsepower, delivering sharper throttle response and a race-inspired chassis setup. The M4 delivers a more dynamic driving experience with sport-tuned suspension and bold styling cues, positioning it as the clear choice for purists craving uncompromised performance.
While the M40i balances daily usability with sporty flair, the M4 is engineered for those seeking maximum power and track-ready capability. Interior refinement favors the Z4 M40i, but the M4’s aggressive aesthetics and premium materials reinforce its identity as a modern M icon. Ultimately, the decision hinges on whether performance or practicality drives your automotive passion.
Choose the Z4 M40i for balanced sophistication and efficiency, or the Z4 M4 for unrelenting power and precision—each defines the spirit of the Z4 in its own way.
Choosing between the BMW Z4 M40i and Z4 M4 comes down to driving intent—practical performance versus pure passion. The M40i excels as a refined, usable sports coupe with balanced engineering, while the M4 delivers uncompromising power and precision that defines the M4 legacy. Whether prioritizing daily usability or track-ready intensity, both models uphold BMW’s tradition of excellence—step into the Z4 and experience the difference for yourself.
Compare performance of BMW Z4 M40i (G29) and BMW M4 (F82). Updated November 2025. The new Z4, I drove.
Not the M40i, but the 30i. I was pretty disappointed, too. It's very capable, but it's missing the engagement.
I also drove the M440i, the 330e, and the i4. They all felt similar. I think it's just the way BMW is making these cars, now.
I own an E90, so I can feel the stark difference almost immediately. Reply reply. The M40i's M Sport suspension with adaptive dampers, M Sport brakes, and M Sport differential used to be a point of separation over the more pedestrian hardware in the four-cylinder Z4, but no.
Compare BMW M4 vs BMW Z4 to know which is better. Detailed cars comparison on BMW M4 vs BMW Z4 compare price, specs, mileage, performance, reviews and other features on car&bike. BMW Z4 Forums (G29) BMW Z4 (G29) General Forum Z4 M40i or 440i Convertible?
How do the BMW M4 and BMW Z4 compare? Use our comparison tool to see over 140 data points, including price, trims, reliability ratings, mpg, rankings, horsepower, depreciation, and standard and optional equipment. What is the difference between BMW 4 Series M4 CS (2025) and BMW Z4 M40i Automatic (2025)? Find out which is better and their overall performance in the car ranking. The 2025 BMW Z4 is a rear-wheel-drive two-seat roadster available in two trim levels: sDrive30i and M40i.
The sDrive30i comes with a turbocharged 2.0. Are you looking to buy a car but can't decide between a BMW M4 or BMW Z4? Use our side by side comparison to help you make a decision. We compare design, practicality, price, features, engine, transmission, fuel consumption, driving, safety & ownership of both models and give you our expert verdict.
BMW M4 vs BMW Z4 Comparison at CarWale. Compare M4 and Z4 Prices, Mileage, Features, Specs, Colours and much more.