Toyota's hybrid sales have reached a significant milestone, with some reports indicating that worldwide sales have surpassed 10 million units, although other reports suggest the total may be lower, with some outlets citing figures of 9 million or 5 million hybrids sold. The Prius is among the models contributing to this total, with its own sales passing the half-million mark. The exact number of hybrids sold by Toyota is unclear, with different outlets reporting different figures.