Porsche has launched a revamped Panamera. It comes with a brand new engine and transmission, an improved chassis and redesigned look which is much more in line with the Porsche brand.The luxury sports sedan Panamera 4S has a 2.9-litre V6 twin-turbo engine with an output of 324 kW. The Panamera 4S can accelerate from 0 to 100 km/h in 4.4 seconds, and Porsche claims it uses just 8.2 liters per 100 kilometers. The car is fitted with Porsche Advanced Cockpit which has touch-sensitive controls and allows for maximum connectivity.