The BMW X6 has generally been considered as the first coupé crossover. It was marketed as a "sports activity coupé" (SAC), as opposed to standard BMW crossovers which are called "sports activity vehicle" (SAV). Introduced in 2008, the vehicle's styling generated some controversy at its introduction and it had less cargo space and a higher price tag, but the body style proved to be popular with tens of thousands being sold annually. However, the Infiniti FX from 2003 has introduced a similar sloping roof design without marketing it as a coupé crossover.