Porsche 718 Cayman GT4 RS confirmed – lapped the ‘Ring in 7:04.5
Porsche’s first Cayman GT4 RS will arrive with some serious firepower when it debuts
Porsche has now officially confirmed it’ll bring its mid-engined model and the Rennsport badge together for the first time to create the 718 Cayman GT4 RS – the most focused, track capable and aggressive iteration of the mid-engined model yet.
Shown as a late-stage prototype dressed in all-black, Porsche has revealed that it achieved an incredible 7:04.5 lap time around the Nürburgring Nordschleife, some 23 seconds faster than a standard GT4.
This impressive lap time, plus the corresponding images and video of it doing so, also gives us some insight about what hardware it’ll feature under the skin. As suspected, the powertrain will consist of a naturally-aspirated 4-litre flat-six paired to a seven-speed dual-clutch transmission – the latter likely to be the only option as most modern RS models.
While power and torque figures remain unknown, the video also reveals it’s capable of reaching engine speeds right up to 9000rpm – around 1000rpm more than a standard GT4 – suggesting that it might in fact me a derivative of the 992 GT3’s engine, rather than the 9A2 Evo unit found in the standard GT4.
We can also see significant changes to the aero package, swapping out the standard GT4 wing with a top-mounted unit on chunky development stacks. The bonnet is also new, and mimics that of the previous 991.2 911 GT3 RS with its two NACA-style ducts and central crease.
This is also the first time Porsche has used a 20-inch centerlock wheel design, in these prototypes being the magnesium units otherwise found on RSs with the optional Weissach package. Also taking a leaf out of the GT3 RS’s book are the ventilated front wings, which are almost, but not totally covered up.
A more interesting adaptation on this mule is the replacement of the Cayman’s rear quarter windows with moulded intakes. It’s difficult to know from these images whether they are functional or not, but given the open nature of standard Cayman’s cabin, it would suggest that some clever induction trickery might be at play if they are.
The 718 Cayman GT4 RS is likely to be a swan song for the current generation mid-engined Porsche range, with the Mission R shown at the Munich motor show looking conspicuously like a replacement for the small sports model. The key difference between the two will be their propulsion, as the Mission R’s job will be to bring electrification to Porsche’s sports models, likely making the RS not just the most exciting mid-engined combustion Porsche model yet, but possibly the most exciting ever.