The Porsche 718 Cayman GT4 RS is one of those cars best understood by what its maker chose to prioritise. Mid-engine GT4 RS borrows the GT3's screaming 4.0L flat-six.

Under the bonnet sits a 4.0L NA Flat-6, sending 493 hp to a RWD driveline. That's enough for 3.2 seconds to 60 mph and a 196 mph maximum — figures that say as much about the gearing and aerodynamics as they do about the engine. At roughly 3,227 lb it carries about 6.5 lb per horsepower, which is the number that actually predicts how it feels on a road rather than on a spec sheet.

Mechanically it's a conventional, well-understood package rather than an experiment, which is a large part of why it works as an everyday car.

Sports cars live or die on feel. Grip, steering weight, gearshift quality and how progressively the chassis lets go matter far more here than a headline power figure. At around $165,000, the 718 Cayman GT4 RS is priced as a car people genuinely use, and our value score of 9/10 reflects what you get for that against its direct rivals rather than against the market as a whole.

It isn't the obvious choice in its class, and that's usually the most interesting position to occupy.

03 / How to use

Owner's walkthrough

Practical guide for everything a new owner asks on day one — starting the car, finding the gear selector, drive modes, infotainment, driver aids, and easy-to-miss features.

How to start it

Step on the brake. The starter is on the LEFT side of the steering column (Porsche heritage from Le Mans). Twist the cylinder forward — or on PCM-only cars, push the rotary knob.

Where the gear selector is (and how to use it)

Stubby PDK lever on the console — push forward for R, pull back for D. Some 911 trims still use a column-mounted miniature lever (~the size of a thumb).

Drive modes

Drive modes are accessed via the steering-wheel mode dial (Sport Chrono package). Available modes typically include Normal, Sport, Sport Plus, Wet, Individual. Each mode reshuffles throttle mapping, steering weight, adaptive dampers (if equipped), exhaust valves, and stability-control thresholds. On performance trims, an 'Individual' or 'Custom' slot lets you save your favorite combination so you can recall it with one click instead of nesting through menus.

Cluster & head-up display

The driver display is a Five-pod digital cluster (central tach). Use the steering-wheel left thumb-pad to cycle layouts (Classic, Sport, Navigation, Minimal). When in Sport / Track mode the cluster automatically swaps to a wide tach with gear indicator and tire-temperature readout. The head-up display brightness, height, and content are configured from Settings → Displays → HUD.

Infotainment & voice control

Infotainment runs on Porsche Communication Management (PCM 6.0). Wireless Apple CarPlay and Android Auto are standard; pair from Settings → Connections the first time, then it auto-connects whenever your phone is in range. "Hey Porsche" wakes the in-car assistant for nav, climate, calls, and messaging without touching the screen. The main display also hosts vehicle-specific apps: tire pressures, performance data recorder (where fitted), drive-mode customizer, and the camera views.

Driver assistance

Standard driver aids include adaptive cruise control, lane-keeping assist, automatic emergency braking, blind-spot monitoring, and rear cross-traffic alert. Toggle each system individually from the driver-assist menu (steering-wheel left-pad → Assistance). Highway-driving assist (hands-off in marked lanes on supported roads), automatic lane-change on indicator tap, traffic-jam assist for stop-and-go, and a 360° surround camera with transparent-hood mode are all available and worth enabling for the first time before driving in heavy traffic.

Fueling

Premium unleaded (91 or 93 octane) is required on Porsche performance models — the engine timing is set for it and lower octane causes audible knock and reduced power. Fuel-cap release is a button on the driver door panel; the cap is capless (just push the nozzle in).

Keys & phone-as-key

Beyond the physical key, this car supports Porsche Digital Key. Set up phone-as-key from the My Porsche app: it provisions a secure credential to your phone's wallet so a tap on the door handle unlocks the car and placing the phone on the wireless charging pad authorizes ignition. You can also share temporary keys to family members (with optional speed and area limits on performance trims) directly from the app.

First-week tips & easy-to-miss features

A few things every new owner tells us they wish they'd known on day one:

Set up the head-up display brightness and content (speed + nav arrows + assist status) the first day — once it's tuned to you it's the most useful screen in the car.
Download the brand app (My Porsche) and pair it with your VIN before your first long trip — remote climate, charging/fuel-level checks, and remote lock-status save you walking back to the garage in winter.
Steering-wheel rotary mode dial: rotate AND press to commit (a single rotate doesn't engage the mode on most trims — it just previews).

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