Porsche 718 Cayman Valuation: 36 used car listings analysed

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How much does the Porsche 718 Cayman depreciate?

Used Porsche 718 Cayman

A used Porsche 718 Cayman (2018) model gains about £213 per month in value.


Factors that affect the appreciation of a Porsche 718 Cayman:
- Mileage
- Age of the vehicle
- Number of previous owners
- Accidents or damage history
- Trim level, equipment, and options


Appreciation is an important part of calculating the total value of owning a Porsche 718 Cayman. In addition to the monthly appreciation of £213, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly value.

How much does a used Porsche 718 Cayman cost? Prices, ratings and depreciation by model year

How much does a used Porsche 718 Cayman cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2020 Porsche 718 Cayman

£35,999 - £74,950£64,25824,000 miles+£13,820< 10

2022 Porsche 718 Cayman

£48,500 - £84,449£62,07910,000 miles+£19,100< 10

2021 Porsche 718 Cayman

£36,000 - £48,989£44,80135,000 miles-£5,160< 10

2019 Porsche 718 Cayman

£34,980 - £49,631£42,37723,000 miles+£2,680< 10

2018 Porsche 718 Cayman

£27,950 - £51,480£41,11936,000 miles+£2,560< 10

2017 Porsche 718 Cayman

£31,445 - £36,900£32,73544,200 miles-£1,320< 10

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Comparison of Porsche 718 Cayman variants and prices

No market data available

Porsche 718 Cayman (model year 2018) - Price development for the last 12 months and price projection for the next 6 months (June 2025 - November 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2025 - June
£38,100
£32,540£43,640
Estimate
2025 - July
£37,140
£32,220£42,040
Estimate
2025 - August
£38,840
£34,600£43,080
Estimate
2025 - September
£38,520
£34,180£42,860
Estimate
2025 - October
£38,020
£33,880£42,160
Estimate
2025 - November
£37,800
£33,880£41,740
Estimate
2025 - December
£38,020
£35,000£41,020
Estimate
2026 - January
£37,720
£34,480£40,940
Estimate
2026 - February
£36,820
£33,040£40,580
Estimate
2026 - March
£37,640
£33,400£41,880
Estimate
2026 - April
£41,220
£37,200£45,240
Estimate
2026 - May
£40,660
£35,540£45,780
Estimate
2026 - July
£41,720
--
Forecast
2026 - August
£42,240
--
Forecast
2026 - September
£42,780
--
Forecast
2026 - October
£43,300
--
Forecast
2026 - November
£43,840
--
Forecast

All estimates and forecasts are based on actual market data

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

£2,560

Next 6 months

£3,180

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Looking for a used Porsche 718 Cayman?

Are you interested in purchasing a pre-owned sports car? Then the Porsche 718 Cayman is a popular option. On AutoUncle, you can find 102 used Porsche 718 Caymen for sale in the UK sourced from different dealership websites and online marketplaces.

What is the used car price of the Porsche 718 Cayman?

The pricing range for a used Porsche 718 Cayman model at AutoUncle will start at £28,994 and go up to £85,989.

There exist five main elements that have an impact on what a used Porsche 718 Cayman costs: the year of manufacture, engine size and performance, fuel consumption of the car, vehicle mileage along with the level of equipment in the car.

For instance, a car that is newer and has fewer miles on the clock will typically command a higher price. In the same vein, models at the higher end, replete with luxurious features or more robust engines, generally come with a more substantial price tag than, for example, an older model with more kilometres driven or with a lower equipment level.

What equipment levels can you get the Porsche 718 Cayman with?

The Porsche 718 Cayman is accessible in two different equipment options:

  • Porsche 718 Cayman Edition: Right now you will find 6 cars for sale at an average price of £59,327)
  • Porsche 718 Cayman Sport: 1 car for sale at an average price of £61,718

When examining the market value of a used Porsche 718 Cayman, it's imperative to evaluate vehicles with equivalent engines and accessories. If you don't, you might draw an inaccurate conclusion about which car to purchase.

What are the most popular fuel types for the Porsche 718 Cayman?

The primary energy source for the Porsche 718 Cayman is petrol.

We strongly advise considering your driving habits prior to choosing among the various fuel types. Is your driving primarily through city traffic or along open highways and motorways? How many miles do you rack up in an average week?

If your trips are mostly short, electric, plug-in hybrid or petrol may make the most sense. For daily long-distance driving, the electric car is often ideal - especially with a charger at home or at work. For longer daily commutes, a modern electric car is often suitable - especially if you can charge at home or at work. Despite the rise of electric cars, diesel can still be useful for long journeys and lack of charging options. Be aware that in a number of countries, cities have implemented bans on diesel engines with high emissions.

Does the Porsche 718 Cayman have multiple body styles?

The Porsche 718 Cayman is only available in the coupe body type in the UK. A coupe is a type of body design that prioritises style and sporty driving. The chassis is typically tighter and stronger than that of a sedan or SUV. This type of car is mostly for people without kids and who tend to travel light. Coupes are typically more expensive to buy than their equivalent sedan or hatchback sister models.

What other cars should I also know and consider?

The Porsche 718 Cayman faces stiff competition within its segment.

Most popular choices as an alternative to the Porsche 718 Cayman

  • BMW 420
  • Audi TT
  • Mazda MX5

With a current inventory of 1,491 available models on AutoUncle, the BMW 420 stands out as the top alternative to the Porsche 718 Cayman. On average, the BMW 420 costs £18,198.

The Audi TT is another popular choice in this segment, with 949 cars for sale and an average price of £13,199. Another good choice for an alternative car is the Mazda MX5 with 556 cars for sale for the average price of £15,000.

Considering a more eco-friendly alternative to the Porsche 718 Cayman?

Considering something greener than the Porsche 718 Cayman? Check out these electric alternatives from the same segment::

Still searching for the ideal electric vehicle? See all our available electric cars here.

Used Porsche 718 Cayman by transmission

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