Porsche 911 — Buyer's Guide

Reliability, safety, running costs and what to check before you buy.

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Porsche 911 overview

With 56,485 currently licensed in the UK, the Porsche 911 is one of Britain's well-known cars.

Euro NCAP awarded the 911 5 stars in 2019, with 95% adult occupant and 74% child protection scores.

Annual running costs are estimated at £7,440 for a typical 5-year-old example, breaking down to £620/month or 93p/mile.

NCAP Safety

2019

Monthly Cost

£620

est. annual total

New From

£104,000

Safety rating

Euro NCAP tested the 911 in 2019 and awarded it 5 out of 5 stars.

Adult Occupant

95%

Child Occupant

74%

Pedestrian

77%

Safety Assist

70%

Safety recalls

There are 48 known DVSA recalls affecting the Porsche 911. Enter a registration number to check whether a specific vehicle is affected.

R/2025/077

Due to a process error in the production an aluminium butyl may have been positioned incorrectly and the screw connection of the rear left and right belt buckle was potentially not executed according to the specifications. If this is the case the correct fastening of the belt buckle cannot be guaranteed. The loosening of the rear belt buckles in the event of an accident or emergency braking cannot be ruled out. This could increase the associated risk of injury.

Build dates: 2023-02-16 to 2023-09-13

R/2024/427

On affected vehicles the wheel attachments using the central lock may not meet the required specifications. This can lead to damage / breakage and the possibility of wheel detachment.

Build dates: 2023-09-13 to 2024-10-23

R/2024/140

On the affected vehicles it is possible that the front and rear window panes were not manufactured in accordance with specifications and their bonding to the body is therefore insufficient

Build dates: 2020-07-09 to 2024-02-21

R/2023/319

On affected vehicles the side airbag installed in bucket seats may be activated unnecessarily.

Build dates: 2021-03-15 to 2023-10-18

R/2021/317

The screw connection of the pressure input rod of the brake booster may not have been tightened according to regulations.

Build dates: 2018-11-07 to 2021-04-29

+ 43 more recalls. Check a specific vehicle to see the full list.

Running costs

Annual running costs for a typical 5-year-old Porsche 911 are estimated at around £7,440 per year, or £620 per month.

Fuel

£1,569

/year

Road Tax

£195

/year

Depreciation

£4,621

/year

MOT

£55

/year

Estimated annual running costs based on available data. Excludes insurance, parking, and finance costs. Actual costs depend on your driving habits and circumstances.

Fuel economy

The 911 achieves a combined fuel economy of around 33.6 mpg (26.2 mpg urban, 40.4 mpg extra-urban).

VariantFuelCombinedEngine
911PETROL33.6 mpg3.0L
911PETROL30.7 mpg3.4L
911PETROL/ELECTRIC25.9 mpg3.6L
911PETROL25.7 mpg3.6L
911PETROL22.6 mpg3.6L
911PETROL29.4 mpg3.6L
911PETROL22.1 mpg3.8L
911PETROL27.7 mpg3.8L

Depreciation

Starting from £104,000 new, a Porsche 911 typically retains about 62% after 3 years and 51% after 5 years.

AgeRetainedEst. ValueLost
1 year83%£85,800−£18,200
2 years70%£72,950−£31,050
3 years62%£64,200−£39,800
4 years56%£57,750−£46,250
5 years51%£53,150−£50,850
6 years48%£49,400−£54,600
7 years45%£46,450−£57,550
8 years42%£44,150−£59,850
9 years40%£41,950−£62,050
10 years38%£39,850−£64,150

How common is the 911?

There are currently 56,485 licensed and 14,723 SORN 911s in the UK (71,208 total). This makes it a common vehicle on UK roads.

Frequently asked questions

How safe is the Porsche 911?

Euro NCAP awarded the 911 5 out of 5 stars when tested in 2019. It scored 95% for adult occupant protection, 74% for child occupant protection, 77% for vulnerable road users, and 70% for safety assist features.

How much does a Porsche 911 cost to run?

Annual running costs for a typical 5-year-old 911 are estimated at around £7,440 per year (£620/month). This includes fuel, road tax, depreciation, and MOT fees — but excludes insurance, servicing, and repairs.

Are there any recalls on the Porsche 911?

There are 48 known safety recalls affecting the 911. These are issued by the DVSA when a safety defect is found. You can check if a specific vehicle is affected by entering its registration number.

How much does a new Porsche 911 cost?

A new 911 starts from around £104,000. After 5 years, a typical example retains about 51% of its original value.

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