A common meaning of armored car (or armored cash transport car, security van) is an armored van or truck, used in transporting valuables, such as large quantities of money (especially for banks or retail companies). The armored car is a multifunctional vehicle designed to protect and ensure the well being of the transported individuals and/or contents. The armored car is completely bullet proof and can withstand extreme degrees of heat. The car is mostly utilized by the military, but many companies such as Mercedes, Lexus, Toyota, Cadillac, Audi, and BMW have created armored cars for civilian use, usually to protect valuables and dignitaries. Armored cars have an armored shell and cab, and typically are customized on a basic van or truck chassis. These vehicles are designed to resist attempts at robbery and hijacking. Bullet-resistant glass and reinforced shells and cabs are designed to resist bullets from most handguns and rifles. They may or may not be manned by armed guards. Such armored cars are usually operated by security firms, and are therefore often referred to as "security vans".