Costs & verdict
Everyday costs, plus how reliable and safe it is
Costs, insurance groups, MPG and CO2
It wears the Porsche badge on its snout, so naturally, buying a 718 Cayman will require a hefty initial investment (with no discounts available, either) – and even more so for our favourite GTS model. If your budget doesn't stretch to a GTS, the Alpine A110 makes a brilliant alternative to the Cayman or Cayman S.
Servicing, replacement parts and tyres will all cost a fair bit, too. Worse still, real-world fuel economy is very disappointing: our True MPG tests of the Cayman S revealed an average of just 28.4mpg – the GTS 4.0-litre won't be much worse in the real world. The 2.0-litre Cayman did better, managing a much more palatable 34.4mpg in our True MPG cycle.
More positively, the Cayman will hold onto its value well, so the costs stack up surprisingly well against rivals such as the Jaguar F-Type.
Equipment, options and extras
Porsche is notorious for giving away very little standard equipment and this is true of the Cayman. Even the range-topping GTS model lacks the kind of kit you might expect as standard on a car costing such a serious wedge; you'll need to pay extra if you want cruise control, power-folding door mirrors, heated seats and even climate control.
So what do you get? Well, the standard Cayman comes with electric windows, air-con, 18in alloy wheels, xenon headlights and part-Alcantara seats. The Cayman S adds 19in wheels, while the GTS model comes with discrete styling upgrades, 20in wheels, lowered adaptive suspension, a limited-slip differential, sports exhaust and the Sports Chrono Pack.
In the 2019 What Car? Reliability Survey, Porsche finished 22nd in the 31-strong list of manufacturers. That's a long way behind Toyota in second, just behind Audi and BMW, and a much better result than Jaguar could manage.
Every Cayman comes with a three-year, unlimited-mileage warranty but, like most cars of this type, it will chew through consumables, such as tyres and brakes, at a rate of knots.
Safety and security
There’s no Euro NCAP crash data available on the Cayman, but all versions come with six airbags and the option of automatic emergency braking (with adaptive cruise control), lane-keeping assistance and speed limit recognition. You'll also have to pay extra to add Isofix fittings to the passenger seat. Most of its rivals come with some, all, or more of that list as standard equipment.
Security experts Thatcham Research awarded the Cayman a maximum five-star rating for resisting theft and four stars for withstanding being broken into.
For all the latest reviews, advice and new car deals, sign up to the What Car? newsletter here
Comfortable and practical, but an Audi TT Roadster and Po...
A proper sports car, full of sensation. The Lotus Elise demand...
Sensational to drive and beautifully built – one of the best o...
One of the most entertaining and rewarding sports cars you can...