
There’s something oddly fascinating about flicking through old classified adverts, and that’s exactly what we've done for this article, revisiting Supercar Driver magazines from 10 to 12 years ago to dig out classifieds and see how today’s prices compare.
In this third installment of the series, we’re focusing on Porsche. Whilst Porsches are all about driving, limited GT models, especially ones with the likes of Mezger engines and manual gearboxes, have become serious collector pieces as the likelihood of them ever being repeated grows ever slimmer.
As always, not all of them are winners though, so let’s get started.

Unlike some of Porsche’s rarer GT products, the 991 GT3 RS has behaved much more like a conventional modern performance car after the initial overs when excitement was at its peak on launch.
Yes, enthusiasts adore them, but Porsche built a fair few, and many owners actually used them properly. As a result, values have softened heavily from the speculative launch-era madness when nearly-new GT cars carried enormous premiums.
Being able to get one for around half what you could 10 years ago makes them more appealing than ever as a car to actually drive, and I wonder if there’s room for them to drop any further, or if we may be at the bottom of the market.

The Cayman GT4 was the car that finally convinced Porsche enthusiasts that the mid-engined platform wasn't destined to live in the 911's shadow forever. Porsche finally gave the Cayman the 911 engine everyone always wanted, with a chassis developed by the GT department, and that combo created one of the most rewarding driver's cars Porsche had ever built.
Initial overs were strong as demand far outstretched supply. Then, as people moved on to the 718 GT4, GT4 RS and GT3 models, the GT4 dropped to seriously appealing money. We managed to pick up our crew car for £55k, but since then, the world has started to realise how undervalued they had become, and they have started to modestly strengthen again since.
Whilst production numbers were relatively healthy and not limited, there are only 11 currently available on Autotrader, and demand has remained strong thanks to the combination of manual gearbox, naturally aspirated power and genuinely exceptional handling. It's also increasingly viewed as the last of the "simple" GT cars before ever-larger dimensions, filters and emissions regulations began to influence the formula. For many enthusiasts, myself included, the OG GT4 is already a modern classic.

For years, the 996 GT2 was the Porsche everyone respected but relatively few people actually wanted. Rear-wheel drive, twin turbos, no electronic safety net to speak of and a reputation for biting back made it one of the most intimidating modern 911s ever produced.
That reputation and rarity has now become its greatest asset. As collectors increasingly seek out cars with genuine character and a touch of danger, the 996 GT2 has emerged from the shadow of later GT products, but still remains in the realm of reality. When Tom Hartley listed this 1 of 16 C16 UK cars at £199,950, it unsurprisingly sold within 24 hours.

The 997 GT3 RS has quietly become one of the most sought-after 911s. We’ve been fans of the 997 for a long time, owning a couple of GT3s and featuring several RS models from the original 3.6 through to the 4.0, and other buyers are increasingly recognising just how special the last of the Mezgers really was.
It has all the ingredients collectors now obsess over: Mezger engine, hydraulic steering, compact dimensions, a manual gearbox and none of the electronic complexity found in newer GT cars.
Values have risen steadily over the past decade, and right now, you’ll be lucky to even find one. There isn’t a single 997.1 3.6 comparable to the original example we’re showing here, so we’re being a little headline-grabbing by comparing it to a 997.2 3.8 with 4,000 miles, but a comparable 3.6 would probably sit at around £200,000.

If the 997 GT3 RS has become revered amongst collectors, the GT3 RS 4.0 is sacred, and having driven a couple, rightly so. Limited production (600 worldwide), enlarged Mezger engine, hydraulic steering, manual gearbox, and widely considered one of the best road-going 911s ever created — it ticks every box enthusiasts obsess over today. The fact that Porsche is unlikely to ever build something quite this analogue again no matter how much they throw manual gearboxes in the new stuff, only fuels demand further.
What once felt like a very expensive 911 (£140k when new) is now rubbing shoulders with hypercars. The sad thing? It’s one of the greatest driving Porsches ever, but at nearly three-quarters of a million pounds (for this 2k mile example RHD example), it’s likely most will rarely turn a wheel ever again.

The 997 GT2 RS market has become properly serious in the last 18 months. For years it lived in the shadow of the GT3 RS 4.0 because people were slightly terrified of it. Now that’s exactly why collectors want one. No manufacturer will ever release a car quite this hairy-chested again.
Manual gearbox, rear-wheel drive, twin-turbo Mezger engine and genuinely intimidating performance have transformed the GT2 RS into one of the most sought-after modern Porsches, and with just 500 ever produced, that’s a recipe for appreciation. RM Sotheby’s Paris 2025 sold a 16k-mile car for over €400k last year, while the very best collector-grade cars now comfortably exceed £600k.

The Carrera GT has become the poster child for analogue hypercar obsession. Manual gearbox. Naturally aspirated V10 with its roots in motorsport. No electronic safety net worth mentioning. Terrifying reputation. All the ingredients collectors now crave. For years, people respected the Carrera GT without truly understanding what it represented. Then the market suddenly woke up just as violently as it did with the Enzo.
The gap between our two examples is perhaps not even quite as big as the reality, as the original car at £615k had 2,500 miles, whilst the current example at £2.2m has 13,000 miles.
Today, it’s viewed less as a supercar and more as one of the greatest driver’s cars ever built. It’s the only V10 Porsche ever built, and that will likely always remain the case, so whilst numbers weren’t super low, with 1,270 worldwide, most have been swallowed up into collections and demand is high.