Manthey-Racing boosts performance of Porsche 718 Cayman GT4 RS

Manthey-Racing, the company Porsche sometimes calls on to run its motorsport programs, has developed an upgrade package for the 718 Cayman GT4 RS, a car that straight out of the box is already brimming with performance. Manthey-Racing is a German motorsports and engineering company based at the Nürburgring, and recently it has entered the…