The country's largest car-maker Maruti Suzuki India on Wednesday launched the new version of its premium hatchback 'Swift' at an introductory price ranging from Rs 4.22 lakh to Rs 6.38 lakh. Built on an all-new platform, the company and its suppliers have invested over Rs 500 crore on the new car. "We have launched the new Swift at a time when there was a significant demand for the outgoing model. I am confident that the new Swift will create new benchmarks with its improved fuel efficiency, stylish and sportier looks and high performance," Maruti Suzuki India Managing Director and CEO Shinzo Nakanishi told reporters here. Launched six years back, the Swift has been a runaway success for the company, with over six lakh units sold so far. MSI is hoping that the new version will further strengthen its position. The new Swift is available in both petrol and diesel options. The petrol variant is powered by a 1.2-litre K series engine, while the diesel version has a 1.3-litre engine.