Porsche has announced it will present the 2013 Porsche 918 Spyder at the Frankfurt Motor Show 2013, in addition to officially begin deliveries this year. According to some reports, the car will be based on 8-cylinder power unit of the RS Spyder LMP2 Race with a displacement of 4.6 liters. It has also some modifications have been made among them include lightweight forged pistons, a variable displacement pump and a central source of oil in...







