It's been 40 years since Pfaffenhausen-based RUF introduced the original SCR. Now it's back with a modern incarnation. Based on the Porsche 964, the SCR 2018 is completely new, using not a single Porsche part. The body is crafted from carbon fiber and sits atop a carbon fiber monocoque chassis so that the whole thing weighs under 2,800 lbs. As a result, its naturally aspirated, 510 hp flat-six — mated to a six-speed manual sending power to the rear wheels — is capable of pushing the car to a top speed of 199 mph. Limited to just 15 examples per year.