2019-6-14 · The Infiniti QX70 (formerly called the Infiniti FX until 2013) is a mid-size luxury SUV produced by the Nissan-owned Infiniti luxury vehicle brand between the 2003-2017 model year. The FX replaced the QX4 as Infiniti's mid-size SUV. It shares the same FM platform as the rear-wheel drive Nissan 370Z, and it "made no claims of climbing mountains."Rather, its aggressive shape promised style and ...