Here’s MotorWeek delivering another one of its informative road tests, this time it’s the hardcore Porsche 911 GT3 RS in the spotlight. Its 3.8L powerplant produces an effectual 450 hp, which is pretty astonishing for a naturally-aspirated engine. From a standstill 60 mph comes up in 4 seconds dead, while the quarter mile is taken care of in 12.5 seconds at 118 mph. Top speed is a missile-like 193 mph.