Manthey-Tuned GT3 and GT3 RS Measured Against Standard Porsches on a Circuit

Road & Track has put Manthey Racing's versions of the Porsche 911 GT3 and 911 GT3 RS through a circuit session alongside the unmodified cars they are based on. The comparison pairs each Manthey-developed car directly with its factory counterpart, so the differences the German specialist's work makes can be judged side by side rather than from the spec sheet. For owners here who already have a GT3 in the garage and have wondered whether the Manthey package justifies the outlay, this is the first direct answer from a publication that ran both back to back. We have not driven the cars ourselves and will leave the verdict to those who did.

With reporting from Road & Track.