Currently reading: Porsche 718 Spyder GT4 RS is 493bhp Boxster swansong
GT3 engine transplant marks the end of an era as the popular convertible is prepared for electrification

The new Porsche 718 Spyder GT4 RS is a screaming, drop-top swansong for Porsche’s mid-engined sports car family ahead of its transition to a pure-EV drivetrain in 2025.

The final iteration of the 718 – as we know it – is the most powerful derivative of the Boxster since production began in 1995. It takes 493bhp and 332lb ft from the same GT3-based atmo 4.0-litre flat six that powers its hard-top sibling, the five-star 718 Cayman GT4 RS. Redlining at an ear-splitting 9000rpm and sending its reserves through a “lightning-speed” seven-speed PDK gearbox, it propels the roadster from 0-62mph in just 3.4sec and on to 191mph.

Porsche says the open roof “makes the highly evocative sound of the engine an even more compelling experience”, particularly given the fitment of a lightweight stainless steel sports exhaust and new air intakes mounted just next to the headrests.

Below the beltline, the Spyder GT4 RS is visually almost identical to the hottest Cayman, complete with gaping air ducts, aggressive downforce-boosting addenda, carbonfibre-reinforced plastic (CFRP) bonnet and wings, and race-style 20in centre-locking forged alloy wheels.

“Designed for maximum pleasure on winding roads,” the car also brings the same track-honed chassis upgrade package as its hard-top sibling. Sitting 30mm closer to the ground on stiffer shocks, it is equipped as standard with Porsche’s active suspension management (PASM) system and features a corner-carving torque-vectoring package with a mechanical differential lock on the rear axle.

Porsche 718 spyder gt4 rs 2023 side tracking close

Up top, meanwhile, the RS takes its lead from the ‘standard’ (but barely less powerful) 718 Spyder in gaining a pair of distinctive buttresses on its rear deck and a prominent ‘ducktail’ rear wing in the name of enhanced aerodynamics.

The striking soft-top has been designed to incur an absolutely minimal weight penalty. Manually operated and made of a lightweight single-layer canvas, the entire structure – comprising a separate ‘sun sail’ and weather protector – weighs just 18.3kg, 7.6kg less than the non-RS Spyder’s and 16.5kg less than the standard Boxster’s. The canvas element can be stowed in the car or removed entirely to save 8kg on the move.


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Porsche GT project manager Markus Atz told Autocar that the familiar styling belies the amount of work that went into refining the Spyder GT4 RS’s roof. He said: “If you reduce it to a few words, it’s just the open version of the GT4 RS. In detail, there was much more to do. We had to look at how we could have a soft-top on the car together with the intake system of the GT4 RS.

Porsche 718 spyder gt4 rs 2023 roof detail

“Because of the transplant of the GT3 engine, we had no other choice than to use the same airbox, but the airbox is directly in the space where the roof is fitted while retracted.

“So there was not enough room for the roof from the base Spyder… So we had a big problem to introduce a new roof just for this car. But after having these problems, we wanted to do the best out of the necessity.”

All up, the Spyder GT4 RS tips the scales at 1410kg – 40kg lighter than the non-RS car – for a power-to-weight ratio of 350bhp per tonne, very slightly up on the Cayman’s 348bhp.

The focus on shaving every kilogram possible extends to the cabin, where the seats are swapped for CFRP buckets upholstered in leather and microfibre, the door handles make way for pull straps and the steering wheel is swapped for a minimalist RS unit with the telltale ‘12 o’clock’ yellow marking.

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Porsche 718 spyder gt4 rs 2023 seat detail

Production numbers will not be strictly limited, and nor has Porsche put an end date on production of the new variant. UK pricing starts from £123,000, the same as the 718 Cayman GT4 RS.

Deliveries are scheduled to begin in July, following the car’s public debut at the Goodwood Festival of Speed. 

Q&A: Markus Atz, project manager, Porsche GT cars

Markus atz porsche

What reaction do you expect to the final ICE 718?

“I think it will be an instant classic because it’s the last combustion-engined 718 model line – and the pinnacle of it… Twenty-five years ago, the 986 Boxster started with 204hp. Now we have 500hp in the same package – nearly – as 25 years ago. So that was really good, and fast, development in 25 years.”

Why does it have to be the final ICE 718?

“Euro 7 sets in in mid-2025 and there was a decision of whether we would develop the engine according to the Euro 7 regulations, or change the model line to battery-electric drive. The 911 will stay with a combustion engine. And the 718 then, probably, is the battery-electric alternative, depending on the market.”

Is a 718 hybrid impossible?

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“If you compare the package space for electrification, the 992 [current 911] got an eight-gear PDK, where the room is already there to get an electric drive inside, and the 718 stayed with the seven-gear PDK, where there is no space left. It would have been possible to make a hybrid car out of the 718 successor, but the 992 will come at a certain time with hybrid systems, so it doesn’t make any real sense to have a second car with hybrid drive.”

When will the Porsche 718 exit the ICE age?

Porsche boxster ev front

The electric Boxster is due in 2025, but Porsche has yet to set an end date for petrol 718 production. “We can’t communicate an exact date, because it’s not really fixed. The dates are different in different markets and there can always be changes,” said Markus Atz. “So if we said we will produce it until the end of 2026 and, say, the electric 718 was postponed by half a year, would we have to stop at the end of 2025 and create a gap? No.”

Felix Page

Felix Page
Title: News and features editor

Felix is Autocar's news editor, responsible for leading the brand's agenda-shaping coverage across all facets of the global automotive industry - both in print and online.

He has interviewed the most powerful and widely respected people in motoring, covered the reveals and launches of today's most important cars, and broken some of the biggest automotive stories of the last few years. 

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suzuka 14 July 2023

I would like to ask, is "718 Spyder GT4 RS" the correct model name? Porsche's sales website and other media outlets refer to it as the "718 Spyder RS" which is confusing me. Is this the name of the UK version? I like AUTOCAR, but sometimes there are some unbelievable misspellings. Can someone please enlighten me? 

gagaga 10 May 2023

No limit to production, except if you actually try to buy one.

Boris9119 10 May 2023

Very true, for curiosity's sake I called my Porsche Brand Ambassador (salesman, but that's what they call them in Florida) and asked about ordereing and availability. Disclaimer, both he and I knew I did not want one, I am a serial customer, purchased three new Porsche from them in the past 2yrs, and an existing  GT customer). He smiled, I smiled, and then he said that the wait list for GT4RS and existing orders for Spyder GT4RS, are more than Porsche will be able to deliver to them even if they continued making them for 5yrs. So, as always, sold out upon release. Me, after 6yrs on the GT3 waitlist (Touring) I am hoping they accept my request to switch my order to the 911 ST. After 5yrs I think I deserve a break?

Just Saying 10 May 2023
Is describing this as the best soft tops ever OTT. I think not. Awesome. And teriffic value once you start comparing it to cars three times as much.
Peter Cavellini 13 July 2023

More like another guaranteed revenue source, Porsche have been doing it for 75 yrs and counting,can anyone recall a Porsche that was a real duffer?