Based on the multi-championship-winning 963, the Porsche 963 RSP is a 680-horsepower flat-plane V8 madhouse. It's road-legal, too.

Lightweight, high-revving, and expensive to keep perfect—this is what real ownership of a 997 GT3 RS looks like when the bills come in.

From the start, it’s clear this isn’t a fair fight — the 992 GT3 RS is Porsche’s most track-focused monster, with DRS wings, crazy downforce, and motorsport-grade grip. But the BMW M2 holds its own ...