The Porsche 718 Cayman and 718 Boxster are two of the best sports cars you can buy in the UK, and the used market on Autotrader has around 300 examples at prices that make them s accessible on finance. Used 718s start from around £30,000 for early 2.0-litre models and climb past well £100,000 for GT4 RS variants with low mileage.
Whether you're after a weekend car or a daily driver with proper performance credentials, the finance product you choose - and the rate you pay - will determine how much that car actually costs you over the next few years. Here's how PCP, HP, and Lease Purchase compare on a used Porsche 718, and why it pays to look beyond the dealer's quote.
Finance Options for a Used Porsche 718
The same three core products apply to the 718 as to any other Porsche: PCP, HP, and Lease Purchase. The difference is in the detail - how each product works at the 718's price point, and which one suits the way you plan to use and eventually exit the car.
Porsche 718 PCP Deals
PCP is the most common way to finance a used 718 Cayman or Boxster. The lender sets a Guaranteed Future Value (GFV) based on the car's projected worth at the end of your agreement, and your monthly payments cover the difference between today's price and that future figure, plus interest. At the end of the term, you can pay the GFV and keep the car, hand it back with no further obligation (subject to condition and mileage), or trade it in for something else.
On a used 718, PCP tends to work well because the model's residual values are strong - particularly on GTS 4.0 and GT4 variants, where demand can outstrip supply. The GFV is usually set conservatively, which can leave you with healthy positive equity if you choose to part-exchange.
HP (Hire Purchase)
HP is straightforward: you pay a deposit and then make equal monthly payments until the car is fully paid off. No balloon, no GFV, no mileage restrictions. Your monthly cost will be higher than PCP, but you'll pay less total interest and the car is yours at the end. This product suits 718 buyers who plan to keep the car - perhaps as a second car for weekends and track days - and don't need the option to hand it back.
Lease Purchase
Lease Purchase gives you the lowest monthly payments of the three, with a balloon payment at the end that you must either pay, refinance, or settle through a part-exchange. Unlike PCP, there's no guaranteed buy-back value. For standard 718 models, Lease Purchase is less commonly arranged because the values involved don't always justify the added complexity. But on higher-value GT4 and Spyder variants, where the buyer is confident about residual strength, it can be a cost-effective structure.
Remember that lease purchase is a specialist product, aimed at business owners, directors and high-net-worth individuals who are savvy enough to take on the extra risk of no GFV. But it can be the best option.
How 718 Finance Rates Compare in the UK
Porsche Centres typically quote around 11.3% APR on used 718 finance through Porsche Financial Services. Independent dealers generally fall in the 10%-12% range. Through Prefinance, our panel of specialist brokers offers rates from 7.9% APR on vehicles valued over £40,000, and from 8.9% APR on those below £40,000. Most mid-spec and higher 718s sit above the £40,000 mark, so the lower rate applies to the majority of models on the market today.
Older cars may attract slightly higher rates.
Used 718 Valued At | Porsche Centre APR | Typical Dealer APR | Prefinance From | |
£35,000 (e.g. 2.0 Cayman) | 11.3% | 10% – 12% | 8.9% (rep.) | |
£50,000 (e.g. Cayman S / GTS) | 11.3% | 10% – 12% | 7.9% | |
£75,000 (e.g. GT4) | 11.3% | 10% – 11% | 7.9% | |
£110,000+ (e.g. GT4 RS) | 10.4% | 10% – 11% | 7.9% |
*Based on Prefinance customer data across Porsche models, the average saving is £86.50 per month (total average saving £4,072 over the term) as of 3rd July 2026. Check our Porsche pages for current savings.
Choosing the Right 718 Variant on Finance
718 Cayman 2.0 and Boxster 2.0
Entry-level 718s with the turbocharged 2.0-litre four-cylinder engine are the most affordable way into Porsche sports car ownership. Used values sit in the £30,000–£45,000 range for tidy examples. At these prices, the rate difference between Porsche dealer finance and what Prefinance can source is around 2.5%, meaning an over 20% interest saving compared to the average dealer.
718 Cayman S, Boxster S, and GTS 4.0
These are the heart of the 718 range for enthusiasts. The GTS 4.0, with its naturally aspirated flat-six engine, is widely regarded as one of the finest driver's cars Porsche has made. Used values reflect this, sitting between £50,000 and £80,000. At this level, the 7.9% rate available through Prefinance starts to show its worth, shaving meaningful amounts from both the monthly cost and the total interest paid. If you're comparing Porsche finance options, this is the tier where the savings really matter. With the dealer often at 11.3% the savings are considerable.
718 GT4 and GT4 RS
Track-focused 718s occupy a different part of the market. GT4 models hold their value exceptionally well, and the GT4 RS has appreciated since launch. These cars are strong candidates for Lease Purchase (where the buyer is confident in the residual) or HP (where the buyer intends to keep the car indefinitely). PCP can still work, but the conservative GFV may not reflect the car's real-world residual strength, meaning you pay more interest than strictly necessary on a deferred value that understates reality.
Why Compare 718 Finance Through Prefinance?
Prefinance is a car finance comparison service that sits between you and the market. We're not a broker and we're not a lender - we compare deals from multiple specialist brokers, each of which has its own panel of lenders, so you see more options than any single dealer or broker could offer you alone.
For 718 buyers, the practical benefit is simple: you find the car you want at whatever dealership has it, then finance it at the best rate the market can provide rather than the rate the dealer happens to quote. The comparison stage uses a soft credit check - no impact on your score - and there's no obligation to proceed with any quote you receive.
Our data shows that Porsche buyers who compare through Prefinance save an average of £86.50 per month. Over a standard agreement, that's an average total saving of more than £4,000. On a car that costs £50,000 to £100,000, those savings are not trivial.
Get Started: Compare Used Porsche 718 Finance
Whether you're looking for a Cayman, Boxster, GTS, GT4, or Spyder, start by seeing what rates are actually available to you. Visit the Porsche 718 Cayman finance deals page on Prefinance to compare quotes from specialist brokers. If you're still deciding between models, you can also explore 911 finance deals or Taycan finance deals to compare across the range. Rates start from 7.9% APR on vehicles over £40,000 and from 8.9% APR below that.
Prefinance is a car finance comparison service, not a broker or lender. We work with a panel of specialist finance brokers who can offer competitive rates from 7.9% APR (representative APR 8.9%). Finance is subject to status. UK residents aged 18 and over only.
