The iX3’s pre-crash front seatbelts will tighten automatically in the event the vehicle detects an impending crash, improving protection against injury significantly. The RZ doesn’t offer pre-crash pretensioners.
To provide maximum traction and stability on all roads, Full-Time Four-Wheel Drive is standard on the iX3. But it costs extra on the RZ.
The BMW iX3’s optional Surround View is equipped with washers for its front and rear cameras, ensuring crystal-clear visibility in any weather condition. Conversely, the Lexus RZ only offers a rear camera washer, which may not provide the same level of all-weather performance.
To help make backing out of a parking space safer, the iX3 has standard Cross Traffic Warning with braking function with automatic braking, systems which detect vehicles approaching from the sides and can automatically apply the brakes to prevent a collision. Only the RZ Premium/Luxury/F Sport offers Parking Support Brake.
Both the iX3 and the RZ have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front and rear 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, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning, driver alert monitors and available around view monitors.
The BMW iX3 weighs 491 to 833 pounds more than the Lexus RZ. The NHTSA advises that heavier vehicles are much safer in collisions than their significantly lighter counterparts.


