Cost to own
Porsche 718 Cayman Ownership Costs UK
Around £700 per month to own
The Porsche 718 Cayman is widely regarded as one of the best driver's cars available at any price. Combining sharp handling, mid-engine balance and everyday usability, it offers a sports car experience that few rivals can match. While ownership costs are generally lower than many supercars, buyers should still budget carefully for fuel, insurance, tyres, servicing and depreciation. The purchase price is only part of the overall cost of ownership.
Estimated annual ownership cost
Assumptions used
- 8,000 miles per year
- 3 years ownership
- Petrol at £1.50/litre
- Depreciation based on age, mileage, usage and car type
Is the Porsche 718 Cayman expensive to run?
A Porsche 718 Cayman is likely to cost around £700 per month over 3 years, based on 8,000 miles per year. The biggest costs are usually depreciation, insurance, fuel and maintenance.
Calculate your own 718 Cayman costsPorsche 718 Cayman ownership cost breakdown
Fuel costs
Fuel costs are relatively reasonable for a dedicated sports car. The turbocharged flat-four engine found in most 718 Cayman models is significantly more efficient than older naturally aspirated Porsche engines, allowing owners to enjoy performance without completely sacrificing economy. However, enthusiastic driving can still increase fuel consumption substantially, particularly on spirited road trips or track days.
Insurance costs
Insurance costs are generally high compared with normal cars but often lower than many buyers expect for a Porsche sports car. Driver age, postcode, mileage and driving history all play a major role in determining premiums. Limited annual mileage policies can sometimes help reduce insurance costs for weekend-use vehicles.
Maintenance costs
Maintenance costs are higher than those of mainstream vehicles but generally predictable. Routine servicing, tyres and brakes are the largest recurring expenses. Porsche parts and labour rates can be expensive, particularly at main dealers, although many owners choose reputable independent Porsche specialists to reduce costs.
Depreciation
Depreciation is often lower than many rival sports cars thanks to strong Porsche demand and desirable residual values. However, depreciation remains one of the largest ownership costs over a multi-year period and should always be considered when calculating affordability.
Is the Porsche 718 Cayman reliable?
The Porsche 718 Cayman has developed a strong reputation for reliability. Porsche generally builds robust sports cars and the Cayman benefits from being one of the brand's most mature and well-engineered platforms. Most owners report relatively few serious reliability concerns when routine servicing is carried out correctly. The drivetrain is generally dependable, and many examples cover substantial mileage without major mechanical problems. As with any performance car, regular maintenance is far more important than simply following the minimum servicing schedule. Age-related wear items such as suspension components, batteries and cooling system parts eventually require attention, particularly on higher-mileage vehicles. Cars used frequently on track may also experience accelerated wear on tyres, brakes and suspension components. One of the Cayman’s strengths is that it is often owned by enthusiasts who maintain their vehicles carefully. A comprehensive service history is still essential when buying used, but overall the Cayman is widely regarded as one of the more reliable sports cars available. While repairs are rarely cheap, major mechanical failures are relatively uncommon on properly maintained examples.
Real-world fuel economy
Real-world fuel economy is surprisingly respectable for a mid-engined sports car. Motorway journeys can often return fuel economy figures in the low-to-mid 30 mpg range, particularly when cruising at steady speeds. Mixed driving generally produces fuel economy in the high 20s to low 30s depending on driving style, traffic conditions and engine specification. Drivers who regularly use the car's performance or attend track days should expect noticeably lower figures. Compared with larger six-cylinder sports cars, the turbocharged four-cylinder 718 models offer a meaningful improvement in efficiency. This helps keep fuel costs relatively manageable while still providing strong performance. For many buyers, the Cayman strikes an appealing balance between sports-car excitement and realistic running costs. Fuel expenditure remains significant compared with a family hatchback, but it is often lower than buyers expect from a Porsche sports car.
Common ownership costs
Tyres are one of the largest ownership expenses. The Cayman relies heavily on tyre performance to deliver its handling characteristics, and most owners choose premium Porsche-approved tyres. Replacement costs are therefore higher than those of a typical family car. Brake maintenance is another predictable expense. While standard brake systems are generally durable, replacement discs and pads can be expensive. Cars equipped with optional performance braking packages may cost even more to maintain. Servicing costs vary significantly depending on whether work is carried out at a Porsche Centre or an independent specialist. Many owners reduce ownership costs substantially by using respected independent Porsche workshops. Depreciation often exceeds maintenance costs over several years of ownership. While Caymans tend to hold value well, buyers should still factor depreciation into their calculations. Overall, ownership costs are usually more manageable than many people expect, but they remain considerably higher than those of ordinary vehicles.
Should you buy a Porsche 718 Cayman?
The Porsche 718 Cayman is an excellent choice for drivers who prioritise handling, driver engagement and build quality. Few cars offer such a rewarding driving experience while remaining comfortable and practical enough for regular use. Unlike many performance cars, the Cayman feels special even at lower speeds. The mid-engine layout provides exceptional balance and confidence, making it enjoyable on everything from country roads to track days. It is often considered one of the best sports cars available regardless of budget. Buyers should focus heavily on service history, condition and previous ownership. A well-maintained example is usually worth paying more for than a cheaper car with missing maintenance records. Optional equipment can also have a significant impact on resale value. For many enthusiasts, the Cayman represents the sweet spot of Porsche ownership. It delivers a genuine sports car experience without the purchase price or running costs associated with a 911, making it one of the most sensible performance car purchases available.
Calculate your own 718 Cayman costsPorsche 718 Cayman running costs FAQs
Is a Porsche Cayman expensive to run?
A Porsche Cayman is more expensive to run than a normal car, but ownership costs are often lower than many buyers expect from a premium sports car.
Is the Porsche Cayman reliable?
The Cayman is widely regarded as one of the most reliable sports cars available when maintained correctly and supported by a strong service history.
What MPG does a Porsche Cayman get?
Many owners achieve around 28-32 mpg during mixed driving, with motorway journeys often producing figures above 30 mpg.