Smart is a German Automotive Manufacturer specializing in the production of microcars and subcompact car. The brand is most wheel known for its Fortwo and Forfour models but has produced over 10 different vehicle models. Customizations, replacements and upgrades are not uncommon, with many starting with suspension upgrades. Popular Smart suspension upgrades can range anywhere from coilovers that enhance the appearance and handling of the vehicle to a big brake kit to improve stopping power.