When descending a steep, off-road slope, the XF’s standard All Surface Progress Control allows you to creep down safely. The S90 doesn’t offer All Surface Progress Control.
Both the XF and the S90 have standard driver and passenger frontal airbags, front side-impact 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, daytime running lights, lane departure warning systems, blind spot warning systems, rearview cameras, rear cross-path warning and driver alert monitors.


