Compare the2026 Mazda MX-5 MiataVS 2026 BMW Z4

The MX-5 Miata’s standard lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. A lane departure warning system costs extra on the Z4.

The MX-5 Miata has a standard blind spot warning system that uses sensors to alert the driver to objects in the vehicle’s blind spots where the side view mirrors don’t reveal them. A system to reveal vehicles in the Z4’s blind spot costs extra.

To help make backing out of a parking space safer, the MX-5 Miata has standard Rear Cross Traffic Alert, helping the driver avoid collisions. BMW charges extra for Cross Traffic Warning on the Z4.

Both the MX-5 Miata and the Z4 have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, crash mitigating brakes, post-collision automatic braking systems, daytime running lights, rearview cameras and driver alert monitors.

Mazda’s powertrain warranty covers the MX-5 Miata 1 year and 10,000 miles longer than BMW covers the Z4. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 5 years or 60,000 miles. Coverage on the Z4 ends after only 4 years or 50,000 miles.

There are over 54 percent more Mazda dealers than there are BMW dealers, which makes it much easier should you ever need service under the MX-5 Miata’s warranty.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it’s being repaired. Consumer Reports rates the MX-5 Miata’s reliability 30 points higher than the Z4.

J.D. Power and Associates’ 2025 survey of the owners of three-year-old vehicles provides the statistics that show that Mazda vehicles are more reliable than BMW vehicles. J.D. Power ranks Mazda third in reliability, above the industry average. With 28 more problems per 100 vehicles, BMW is ranked 9th.

On the EPA test cycle the MX-5 Miata gets better mileage than the Z4:

To lower fuel costs and make buying fuel easier, the Mazda MX-5 Miata uses regular unleaded gasoline (premium recommended for maximum performance). The Z4 sDrive30i requires premium, which can cost on average about 84.9 cents more per gallon.

For better maneuverability, the MX-5 Miata’s turning circle is 5.3 feet tighter than the Z4’s (30.8 feet vs. 36.1 feet).

The Mazda MX-5 Miata may be more efficient, handle and accelerate better because it weighs about 950 to 1050 pounds less than the BMW Z4.

The MX-5 Miata is 1 foot, 4.6 inches shorter than the Z4, making the MX-5 Miata easier to handle, maneuver and park in tight spaces.

The MX-5 Miata is 5.1 inches narrower than the Z4, making the MX-5 Miata easier to handle and maneuver in traffic.

The MX-5 Miata's optional power retractable hardtop allows a seamless transition from an open car, to a completely sealed coupe. The Z4 doesn’t offer a retractable hardtop.

As tested by Car and Driver while at idle, the interior of the MX-5 Miata RF Club is quieter than the Z4 sDrive30i (45 vs. 48 dB).

The MX-5 Miata’s standard power windows have a locking feature to keep children from operating them. BMW does not offer a locking feature on the Z4’s standard power windows.

Consumer Reports rated the MX-5 Miata’s headlight performance “Good,” a higher rating than the Z4’s headlights, which were rated “Fair.”

Consumer Reports® recommends both the Mazda MX-5 Miata and the BMW Z4, based on reliability, safety and performance.

The Mazda MX-5 Miata outsold the BMW Z4 by over four to one during 2025.