Overview
The 991.1 is the first phase of the seventh-generation Porsche 911. It arrived in 2011, and the Carrera range changed to turbocharged engines with the 2015 model update; registration year alone can therefore misidentify a late car. The appeal of a 991.1 Carrera is its naturally aspirated flat-six, combined with a roomier cabin and greater refinement than earlier 911s. A buyer should establish the exact model and engine before comparing asking prices: Carrera, GTS, Turbo and GT cars occupy different parts of the market. Porsche’s generation history and engine history explain the changeover.
Versions and engines
Read this section: Versions and engines
- Carrera and Carrera S: the naturally aspirated Carrera uses a 3.4-litre flat-six rated at 350 PS; the S has a 3.8-litre engine rated at 400 PS. Early specifications list a seven-speed manual or seven-speed PDK gearbox. Porsche specifications.
- Carrera GTS: the naturally aspirated 3.8-litre GTS produces 430 PS. Check whether an advertised GTS is from before the Carrera range’s turbocharged update. Porsche engine history.
- Carrera 4, Cabriolet and Targa: drivetrain and body style need their own comparison. The rear-drive coupé, all-wheel-drive car and open cars offer different ownership experiences even when their engine badges match. Porsche’s technical-specification archive.
- Special models: the 2013 50th Anniversary Edition is based on the Carrera S and has a wide rear body. Treat its identifying details as part of the purchase inspection. Porsche’s edition history.
What drives the price
Read this section: What drives the price
Start with the exact derivative, then assess condition and history within that derivative. A naturally aspirated Carrera S and GTS should not be valued as interchangeable cars: the GTS has a distinct factory engine specification. A manual may appeal to a buyer seeking direct involvement, while PDK suits someone who wants quick, consistent shifts; neither choice excuses missing gearbox maintenance. Factory equipment should be verified against the car’s specification, especially when an advert claims a special edition.
Service records matter more than a low odometer reading alone. An early car with evidence of persistent oil consumption, unresolved coolant loss or gearbox faults carries a different repair prospect from a car with documented diagnosis and corrective work. On all-wheel-drive examples, ask a specialist to assess the transfer case during the road test. These are inspection priorities identified in the 991 buyer’s guide, rather than guarantees that a given car will fail.
Common problems and what to inspect
Read this section: Common problems and what to inspect
- Oil consumption: ask for the owner’s oil top-up record. Inspect exhaust outlets for unusual soot and have a specialist investigate consumption that cannot be explained by normal use. PcarWise.
- Cooling system: look for dried coolant residue around the water pump, thermostat area and hose connections. A car that repeatedly needs topping up needs a pressure test, including after it has reached operating temperature. PcarWise.
- Direct-injection intake deposits: rough idle or weak acceleration warrants fault-code reading and specialist assessment. Intake-valve deposits are among the causes reported for these engines. PcarWise.
- Transmission and driveline: test PDK changes cold and warm, including manoeuvring. On all-wheel-drive cars, investigate shuddering or binding rather than attributing it to tyres without diagnosis. PcarWise.
Running costs
Read this section: Running costs
Porsche’s UK Carrera schedule specifies services at two years or 20,000 miles, with brake-fluid changes at those visits and spark plugs at the applicable later service. It also lists age- and mileage-dependent drive-belt, air-filter and transmission-oil work. Check the schedule for the precise derivative: Turbo and GT models have different requirements. Budget for a specialist inspection of cooling components, brakes, tyres and suspension even where the stamped schedule is complete. Porsche UK service schedule.
FAQ
Read this section: FAQ
Is every 2016 Carrera a 991.1? No. Porsche says the Carrera range changed to turbocharged engines with its 2015 model update, so confirm the engine and model designation rather than relying on first registration. Porsche generation history.
Does a 991.1 have an IMS-bearing problem? The IMS concern associated with earlier Porsche engine families is not the principal 991.1 inspection issue. Concentrate on this car’s oil use, cooling system and transmission history. PcarWise 991 guide.
Is a manual worth seeking out? It is a preference, not proof of better condition. Compare manual cars with other manuals of the same derivative and examine clutch and shift quality on the test drive. Porsche specifications.
What should a pre-purchase inspection include? Request a cold start, a warm road test, fault-code scan and examination for oil and coolant leaks. Add transfer-case assessment for an all-wheel-drive car. PcarWise 991 guide.
Sources:
- Porsche, seventh-generation engine history — checked 4 November 2026.
- Porsche, early 991 Carrera specifications — checked 4 November 2026.
- PcarWise, 991 buyer’s guide — checked 4 November 2026.
- Porsche UK, 991 Carrera service schedule — checked 4 November 2026.