General Motors, the world’s biggest carmaker, on tuesday, made its entry in the small-car segment with the launch of Chevrolet Spark in four models. It is likely to impact the segment leader Maruti Suzuki and Hyundai Motors. For the base model, Spark will be aggresievly priced at Rs 3.09 lakh (ex-showroom Delhi) while the most expensive model would cost Rs 3.89 lakh. Spark will also come with a three-years or 1,00,000 kilometere service warranty, which is one of the best in the industry. Bookings will commence from April 18 while deliveries will start from May 1.