To provide maximum traction and stability on all roads, Full-Time All-Wheel Drive is standard on the i7. But it costs extra on the LS.
Both the i7 and the LS have standard driver and passenger frontal airbags, front side-impact airbags, 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 i7 weighs 824 to 1221 pounds more than the Lexus LS. The NHTSA advises that heavier cars are much safer in collisions than their significantly lighter counterparts.

