Billionaire's Ride Can Now Be Yours: 2007 Porsche 911 Carrera 4S Cabriolet Modified By RUF - story Go to full screen story Fullscreen

Billionaire's Ride Can Now Be Yours: 2007 Porsche 911 Carrera 4S Cabriolet Modified By RUF

Featuring bespoke touches and performance enhancements, here's why this stealthy 997.1 Cab is worth the premium

by Dimitar Angelov on September 25, 2024, 13:00

For many, the 997-generation 911 is the last old-school Porsche. Essentially, an evolution of the controversial 996, the 997 (eventually) fixed all of the 996’s problems while exploiting the chassis to its full potential. It is the 997 generation that spawned some of the most iconic Porsche 911 variants. While the example featured here is one of the more mainstream versions of the rear-engine sports car, it has been tastefully modified. Now I know that adding forced induction to a naturally aspirated Carrera is not that uncommon, and many owners are opting for it, especially with tuners like RUF offering specially developed kits that enhance performance.

But this particular model is a very interesting specification of the 997.1 Carrera 4S Cabriolet, in that it isn’t your typical “old man’s cruiser”. The car has had two previous owners. Now up for sale, it has an interesting story. While the listing doesn’t specify a name, this car was originally delivered in 2007 to Otto Bock Holding, which is a billion-dollar company in Germany specializing in healthcare. Post deliver, this custom 911 4S Cabriolet was summoned to get a few bespoke mods and it now features an array of carefully chosen parts by RUF, which not only enhance its aesthetic appeal but also add to its performance beyond what you got with a stock 997 GTS of its day. But has RUF really done enough to fulfill all the thrills that a 911 enthusiast seeks? Here’s what I found.

The 997 is a great base to build upon

Billionaire's Ride Can Now Be Yours: 2007 Porsche 911 Carrera 4S Cabriolet Modified By RUF storyboard - image 193567

No Porsche enthusiast, myself included, would scoff at any 997, even if it had the rather sluggish Tiptronic automatic from Mercedes-Benz. The 997 generation also gave us some noteworthy models like the last Porsche 911 Turbo with a manual as well as the last Mezger-powered Porsche 911. The example seen here has the six-speed manual, which I feel, is the right way to go for any 997.1. Of course, conversions are available if you want to go down that path. The base 997.1 Carrera 4S gets wider rear hips and an M97 flat-six. This was an evolution of the M96 engine, but sadly, it shared many of the same common issues. The M97 engine was also the last Porsche boxer engine, used in mainstream models to feature the traditional, multi-port fuel injection.

Performance specifications Porsche 911 (997) Carrera 4S Cabriolet
Engine 3.8-liter, M97.01, DOHC, naturally-aspirated, flat-6
Power 355 hp at 6,600 RPM
Torque 295 pound-feet at 4,600 RPM
Transmission 6-speed manual/ 5-speed automatic
Drivetrain Rear engine, AWD
Curb weight 3,318 pounds
0-60 mph 4.7 seconds
Top speed 182 mph

From 911 Carrera 4S Cabriolet to RUF R Comrpessor Convertible

Billionaire's Ride Can Now Be Yours: 2007 Porsche 911 Carrera 4S Cabriolet Modified By RUF storyboard - image 193558

When a car looks like it should have come like this from the factory, you know someone has done a good job. This particular Porsche 911 benefits from RUF’s R Compressor convertible conversion. It started out as a 911 Carrera 4S Cabriolet that got a RUF conversion, which was later complemented by exterior and interior parts by Reinald Mattes– those being the Matt Titanium Gray over a Cognac interior and roof. Last, but not least, is the "ergonomically-sculpted" steering wheel with carbon inserts. It is worth noting that this isn’t a RUF-build car as those have their very own, RUF VINs. You get a RUF body kit including front and rear bumpers, more akin to a 911 GT3, as well as a staggered set of 19-inch wheels with 235/35 ZR19 Pirelli tires at the front and 325/30 ZR19 at the rear.

Billionaire's Ride Can Now Be Yours: 2007 Porsche 911 Carrera 4S Cabriolet Modified By RUF storyboard - image 193557

Coming to the mechanical bits, the RUF R Compressor (Kompressor) kit, which cost about $35,000 back in the day, actually has two variants – one for the 3.6-liter M96 engine and the one featured here, which is for the 3.8-liter M97 unit. Performance modifications include a centrifugal-type supercharger, upgraded intercooler, intake and exhaust. The RUF package also includes upgraded brakes and sportier RUF-tuned Bilstein suspension. The RUF R Kompressor typically comes with a hood and spoiler made of Kevlar and carbon fiber, but it is not specified whether this particular car has them.

Performance specifications RUF R Kompressor
Engine 3.8-liter, M97.01, DOHC, supercharged, flat-6
Power 429 hp (435 PS) at 6,000 RPM
Torque 347 pound-feet at 2,800-6,200 RPM
Transmission 6-speed manual/ 5-speed automatic
Drivetrain Rear engine, AWD
Curb weight approx. 3,370 pounds
0-60 mph approx 4.0 seconds
Top speed approx. 191 mph
Mileage 84,630 miles

Here’s why going for the Cabriolet isn’t as bad as you may think

Now I know that there is a stigma surrounding the convertible body style, which is one of a heavy, old man’s cruiser as opposed to the sporty, fixed-head models. The question of chassis rigidity always comes up with this type of car, but Porsche engineers have done their job meticulously. The Porsche 997 was actually developed as a convertible first, which means chassis flexing should not be a thing here. More surprising is the fact that the 997 Carrera 4S Cabriolet is just 65 pounds heavier than the equivalent 997 Coupe, which tips the scales at 3,263 pounds. Another neat thing about the Cabriolet is that the active rear spoiler raises at a higher angle compared to the Carrera, to compensate for the convertible’s extra drag.

This 911 RUF R Compressor is up for grabs on Elfersport.com for EUR 98,500 ( $110,000). This is more than double the cost of what a stock 997.1 Carrera 4S Cab costs today but this one is obviously far from stock.Max from AutoTopNL, who drove the car recently, notes that the current owner has had it since 2010. One of the stand-out features of this conversion is obviously the supercharger. While you can’t necessarily hear that the whine, if you watch the video above you will note a distinctive bark at the red line, which is not present on the stock powerplant of the naturally aspirated flat-six. Has it made a difference to the performance, in my opinion, it is a definitive yes. This RUF conversion kit has certainly transformed this highly desirable analog 911 Carrera 4S Cab, and the fact that it happily tops out at 186 mph nearly two decades since it first hit the road, means that it has stood the test of time.

Dimitar Angelov

Dimitar Angelov

Dim has been an automotive journalist since 2014. Although he is interested in all things automotive, his main interests revolve around, Asian, classic, and sports cars. He is particularly fond of Porsche sports cars as well as JDM classics from Toyota, Nissan, Honda, and others. Dim operates mainly from Bulgaria, but can, occasionally, be seen attending Europe's most reputable Auto shows, and events. Read full bio