“Everybody’s asking for the RS,” Walliser told Autocar. “Can I imagine a GT4 RS? Sure I can. That’s not to say we will make a decision on it yet, as it is a challenge. Would I like such a car? Yes, definitely! Would I like more horses? Yes. But we need to put the resources where the market is; it would be a lot more expensive than the normal one.”
Porsche has never made a GT4 RS, previously suggesting such a model would be too close in price and performance to 911 GT models. But the new 4.0-litre flat six found in the latest GT4 forms part of an all-new engine family, and it's expected that Porsche will spin off further variants of that unit to justify the investment.
It's understood that the brand is looking to reintroduce the flat six to more mainstream Cayman and Boxster variants as part of a facelift. Although Walliser would only confirm that Porsche has “started the thinking process” on this, he acknowledged that the US market has been less welcoming of the current four-cylinder models than hoped. “American customers aren’t asking for four cylinders, they're asking for four litres,” he said.
Walliser also discussed the idea of electric 718 models (first reported by Autocar in April). He claimed that if the official go-ahead was given, he “wouldn't like to change the character of the car, and the price point; we need to have an entry level car as 718 buyers often step up to a 911".
He continued: “Priority number one is to keep the character of the car - not making a big car, not making it heavy, but this is very tricky. And it’s a relatively small-volume car, so we maybe can't do a separate platform."
Porsche definitely won’t be joining the glut of newly launched electric hypercars with its own take on the formula, however - for the time being, at least.
Pouring water on the claims made by manufacturers such as Rimac and Lotus, Walliser said: “We've seen a lot of studies of electric hypercars. For me, the proof is when it’s on the street with a licence plate. Does an EV hypercar work? It’s like saying to me that a drag racer is a suitable sports car. For sure it’s perfect from 0-100, but to make it usable and do several laps of the Nürburgring wouldn't work with the technology at its current state”.
Walliser did welcome the idea of using hybrid technology to extend the life of Porsche’s widely celebrated naturally aspirated GT engines. “A hybrid for sure with a normally aspirated engine works well together," he said. "The low-rev electric motor torque and high-revving normally aspirated engines fit perfectly. It could help to keep a normally aspirated engine to survive, and we're very motivated to do so”.