2023 Porsche 718 Cayman GT4 RS Review – Specs, Price & Performance

The 2023 Porsche 718 Cayman GT4 RS arrives as the most track‑focused iteration of the mid‑engine sports coupe line. Porsche has taken the already sharp GT4 and added a suite of lightweight, aerodynamic, and power upgrades that promise to make the car feel at home on a racetrack while still being road‑legal. In this review we’ll unpack what sets the GT4 RS apart, look at the numbers under the hood, and see whether the price tag matches the experience.

First Impressions and Driving Feel

From the moment you approach the GT4 RS, the aggressive front splitter and the rear wing catch the eye. The car sits lower than the standard GT4, and the carbon‑fiber components give it a purposeful, stripped‑down aesthetic. Inside, the cabin is stripped of excess weight — the rear seats are removed, and a lightweight racing seat replaces the usual sport bucket.

On the road, the GT4 RS feels like a raw, unfiltered Porsche. The steering is precise, the chassis is taut, and the exhaust note is a high‑pitched, naturally aspirated scream that never feels artificial. Even on city streets, the car’s balance and feedback make you feel connected to every turn.

Engine, Transmission, and Performance Figures

The heart of the 2023 Cayman GT4 RS is a 4.0‑liter flat‑six that produces a solid 500 horsepower at 7,500 rpm and 339 lb‑ft of torque. Paired with Porsche’s quick‑shifting 7‑speed PDK dual‑clutch gearbox, the power is delivered with minimal lag. Porsche claims a 0‑60 mph sprint in around 3.2 seconds, and a top speed of roughly 190 mph.

Beyond raw numbers, the engine’s character shines through its high‑revving nature. Redline sits at 8,200 rpm, encouraging drivers to stay in the upper rev range for maximum performance. The exhaust system is specially tuned for a more aggressive tone, and the sound is amplified by the lightweight bodywork.

Chassis, Suspension, and Track‑Ready Features

Porsche has overhauled the GT4 RS’s chassis to cut weight and improve rigidity. The car sheds about 150 kg compared with the standard GT4, thanks to a carbon‑fiber rear wing, a new front splitter, and a lightweight glass windshield. The suspension uses a track‑tuned, adjustable coil‑over setup, while the rear axle features a revised multi‑link geometry for better camber control.

• Weight reduction: Approximately 150 kg (330 lb) lighter overall.
• Downforce: Estimated 200 kg at 150 km/h, courtesy of the rear wing and front splitter.
• Brake system: Larger, carbon‑ceramic brakes with six‑piston front calipers.

These changes translate to a tighter cornering experience, with lateral grip that rivals many dedicated track cars. The car also offers a selectable “Race” mode that sharpens throttle response, stiffens the suspension, and adjusts the stability control settings for maximum performance.

Interior Quality and Technology

Inside, the GT4 RS is all about driver focus. The back seats are gone, making room for a lightweight, FIA‑approved racing seat that can be bolted directly to the chassis. The steering wheel is a flat‑bottom, carbon‑fiber‑wrapped unit with a compact, analog‑style tachometer and essential driver aids.

While the cabin is minimalist, it still retains Porsche’s hallmark quality. The materials are premium — leather, Alcantara, and carbon‑fiber trim — and the infotainment system is a stripped‑down version of the Porsche Communication Management, offering navigation, Bluetooth, and a performance data logger.

Pricing, Options, and Value Proposition

Base MSRP for the 2023 Porsche 718 Cayman GT4 RS starts at roughly $144,500 in the United States. This price reflects the extensive use of carbon‑fiber, the upgraded suspension, and the bespoke engine tuning. Optional extras include a carbon‑ceramic brake upgrade (adding about $12,000) and a performance data acquisition system for track days.

When you compare the GT4 RS to competitors like the Chevrolet Corvette Z06 or the McLaren 570S, the Porsche sits in a similar price bracket but offers a more purist, driver‑centric experience. The combination of a naturally aspirated flat‑six, precise handling, and everyday usability gives it a unique niche that many buyers find worth the premium.

Frequently Asked Questions

How does the GT4 RS differ from the standard GT4?

The GT4 RS is lighter, more powerful, and equipped with extensive aerodynamic upgrades. It also features a track‑tuned suspension, carbon‑ceramic brakes, and a stripped‑down interior focused on weight savings.

Is the GT4 RS suitable for daily driving?

Yes, although its stiff suspension and lack of rear seats make it less practical than the standard GT4. Many owners enjoy weekend drives, but the car shines brightest on a track.

What is the expected fuel economy?

Porsche rates the GT4 RS at around 16 mpg city and 20 mpg highway, reflecting its performance‑focused nature.

Can I add a manual transmission?

The GT4 RS is only offered with the 7‑speed PDK dual‑clutch gearbox; a manual option is not available for this model.