Porsche 911 Turbo S 991

Lore & Background

The 991 generation of the 911 Turbo S arrived in 2013 as Porsche's statement that the rear-engine, air-cooled-era icon could still punch above its weight in a world of V8s and V10s. By dropping the old 3.6-litre unit for a 3.8-litre twin-turbo flat-six, Porsche gained a broad, linear torque curve that makes the car feel effortless from a standing start yet still revs with a vocal, raspy bark that no V8 can replicate. In the Forza Horizon open worlds, that character translates beautifully: the car wants to be driven, not just pointed, and its weight distribution rewards a driver who respects the tail.

Within the franchise's narrative, the 991 Turbo S is never a one-off trophy car. It shows up in the hands of everyday players grinding through the Horizon Festival, parked on a dirt overlook in the Australian outback or sliding through wet Scottish heather. It is the car you buy when you have saved up enough credits and you want something that feels like a Porsche should feel—precise, a little aloof, and absolutely relentless once the turbos spool.

Fans often pair it with a deep, metallic blue or the classic GT Silver, and the community has a soft spot for the subtle rear wing and the way the taillights glow in the Horizon 5 sunset. It is, in the collective imagination of the player base, the car you drive when the music is good and the road is empty.

In Their Own Story

The sun was dropping fast over the Pacific coast, painting the asphalt in bands of amber and violet. You had just finished a long stint through the canyon roads, the twin turbos still ticking softly as the oil settled. You pulled onto the shoulder where the highway hugged the cliff edge, killed the engine, and let the silence rush in. The 991 sat there, its rear fenders still warm, the little wing catching the last of the light. No one was watching. No leaderboard was scrolling. You just sat in the driver's seat, hands on the wheel, and listened to the sea. Then you started the engine again, because the road still had miles in it and the flat-six had more to say.

Reader's Guide

Full model: Porsche 911 Turbo S (991), 2013–2015, S2 class (Forza Horizon 5). Stock, the car makes roughly 550 hp from its 3.8-litre twin-turbo flat-six, sits near 3,700 lb, and carries a handling rating that puts it firmly in the fast-but-not-hypercar bracket—quick to 60 in about 3.2 seconds, top speed just over 200 mph, and a cornering feel that is more communicative than raw grip.

Tuning levers are generous. You can swap the stock engine for higher-output units, bolt on a larger turbo or a supercharger, and move to a shorter-ratio or higher-ratio transmission depending on whether you want launch speed or top-end. Suspension, brakes, and tyre compounds are all upgradeable, and body kits shift the aero balance. The trade-off is weight: every bolt-on adds mass, and past a certain point the 911's rear-engine balance starts to fight you, especially in tight, technical sections.

Build philosophy: treat it as a driver's car first—modest turbo bump, stiffer suspension, sticky rubber—and let the flat-six do the talking rather than masking it under a mountain of horsepower.

Did You Know?

• The 991 Turbo S uses a twin-turbo flat-six, a layout Porsche has refined for decades, and its torque curve is so linear that the car feels almost effortless from idle to redline.
• In Forza Horizon 5 the car sits in the S2 class, meaning it is expected to hold its own against dedicated hypercars, yet its handling model still feels distinctly '911' rather than 'rocket'.
• The PDK dual-clutch transmission gives the Turbo S near-instant gear changes, which in the Horizon games translates to a very clean, snappy shift feel that many players prefer over a manual on a supercar.
• The 991 generation was the first 911 to use a fully digital instrument cluster as standard, a small detail that fans of the franchise notice when they look at the in-game cockpit.