Global sales of Toyota’s Prius petrol-electric hybrid have topped two-million, the automaker has announced.The Prius, now in its third generation, was launched in 1997 and about 2.012-million cars had been sold by September 2010. Based on these figures, Toyota calculates it has saved around 11-million tonnes of CO2 emissions compared to petrol-only cars of a similar size and power. The current Prius, according to the company, emits only 89g/km of CO2. The car is sold in more than 70 countries and hybrid power is considered a key component of Toyota’s development of more-efficient and environmentally friendly vehicles. Toyota is hoping to sell a minimum of a million hybrid cars per year within the next 10 years.