The redesigned 2009 Infiniti FX was officially unveiled at the Geneva Motor Show. The V6 model was still called FX35, but the V8 model was renamed FX50 in recognition of its 5-liter engine. Infiniti FX50 models do not have keyless entry remote fob smart keys that are onboard programmable and therefore require special equipment in order to program the keyless entry remote fob smart key.