If a crash is unavoidable, Lexus’s Pre-Collision System is also available on the LS 460. The system, which uses input from the optional radar cruise control to detect an impending crash, adds an additional measure of protection by cinching up the driver and front passenger’s seatbelts and priming the car’s Brake Assist system so it’s ready to apply maximum braking force the moment the driver touches the pedal. Eight standard airbags are standing by to cushion the blow.