The Porsche 911 GT3 RS is a beast on the track, made to win races. And as it has progressed through its generations, its top ...

Hagerty's Henry Catchpole took a Porsche 930 TAG Turbo and a RUF CTR in matching Mint Green to a Welsh racetrack.

For the highest revving street-legal 6-cylinder engine currently for sale, head over to Porsche to sample its screaming 4.0L flat-6.