Here is a top speed test run with the new generation 2014 Porsche 911 Turbo S (991). The new 991 Porsche 911 Turbo S (2014) is powered by a 3.8-litre 6-cylinder boxer engine that has an output of 560 hp. With this engine, the new 911 Turbo S (2014) can get from zero to 62 mph (100 km/h) in 3.1 seconds. Porsche's official specifications say that the 2014 911 Turbo S can reach a top speed of "just" 197 mph (315 km/h). However, this top speed test proves that the 2014 Porsche 911 Turbo S can reach at least 333 km/h.