The 552bhp 991 Porsche 911 Turbo S is supremely fast, but does that make it a brilliant supercar? Steve Sutcliffe finds out. We’ve driven the long-awaited 2013 Porsche 911 Turbo, the most powerful version of the 991 so far, with 552bhp and four-wheel drive. This is a crushingly fast supercar, hitting 60mph in less than 3 seconds in a drag race, and all the driver has to do is mash the throttle and hold on. What’s really impressive is that it can do it all day long, and keep you comfortable at the same time.