2018 Porsche 911 3.0L Petrol · GF18 KXR

Fuel economy on the 991.2 Carrera is officially rated at around 31 mpg combined, though real-world figures typically fall to the mid-20s. Annual fuel cost will depend heavily on mileage, but at the recorded average of roughly 2,300 miles per year, fuel should be a relatively modest outlay of perhaps £600–£900. The 3.0-litre petrol engine requires premium unleaded, so budget accordingly at the pumps.

Road tax for a 2018 Porsche 911 registered before April 2017 standards sits in a higher bracket — this post-April 2018 car will pay the standard £190–£195 annual VED for petrol vehicles over £40,000 list price, given the 911's original price point. Insurance is where 911 ownership bites hardest: most Carrera variants sit in insurance group 50, and premiums typically range from £800 to £1,500 per year depending on driver profile and location.

Maintenance is the headline cost for any 911. A minor service is generally £400–£600, while a major service (including spark plugs and brake fluid) can exceed £1,200 at a main dealer. Tyres for the 911 are expensive — a full set can cost £800–£1,200. Based on the recorded usage pattern, estimated annual running costs for this vehicle are likely in the £2,200–£3,000 range, assuming modest mileage and occasional use.

Given the MOT history is entirely clean with no advisories or failures, there are no specific MOT-flagged issues to chase on this individual car. However, the Porsche 911 model aggregate shows the most common MOT failure points are headlamp issues, exhaust problems, and anti-roll bar components — areas worth a close visual check on any 911 regardless of history. Inspect both headlamps for condensation, LED function, and alignment, and examine the exhaust system for corrosion at joints and mounts, particularly on a car that may have seen limited winter use.

The 991.2 generation 911 is generally regarded as mechanically robust, but specific items deserve attention at this age and mileage. Check the condition of the tyres — the 911's wide rear tyres can wear unevenly even at low mileages, and age-cracking is a concern on a car that has been stored. Inspect the brake discs for surface corrosion (common on low-use cars) and verify the brake fluid has been changed within the last two years. Open the engine bay and look for any signs of oil leaks from the sump, cam chain covers, and the rear main seal.

Finally, a Porsche-specific diagnostic read using PIWIS or a comparable tool is highly recommended. This will reveal any historic fault codes, the current state of the DME (engine management), and whether any software updates have been applied. For a turbocharged flat-six, also confirm that the coolant and oil have been changed at the correct intervals and check the condition of the turbocharger pipes and intercoolers for any signs of oil contamination.