2006 PORSCHE 911

Seal Grey Metallic | Factory X51 Powerkit | Factory Aerokit | 66,500 Miles

There are rare 997 Carrera 4S models, and then there are unicorn specification cars such as this.

First registered on 5th May 2006 and finished in timeless Seal Grey Metallic, this outstanding Carrera 4S was specified from new with an extraordinary collection of Porsche Exclusive options, headed by the coveted X51 Powerkit, Factory Aerokit and six-speed manual transmission.

For many enthusiasts, this represents the ultimate naturally aspirated 997.1 Carrera specification.

The factory X51 Powerkit transformed the already impressive 3.8-litre flat-six from 355bhp to 381bhp through a comprehensive programme of Porsche Motorsport-derived engineering enhancements. These included revised cylinder heads, an enlarged intake plenum, carbon-fibre induction system, modified exhaust components, additional cooling and bespoke engine management calibration. The result is a sharper, freer-revving and more engaging driving experience while retaining complete factory originality.

Acoustically, the X51 introduces a more urgent, layered character to the flat-six, especially as revs rise beyond the mid-range. Compared with the smoother, more uniform sound of the standard car, it develops a harder edged induction tone and a noticeable lift in intensity past 5,000 rpm as airflow and resonance effects come into play. The result is a more charged, mechanical feel that builds towards a sharper, more metallic crescendo at the top end, with a distinctive race-bred edge reminiscent of the metallic, hard-edged tone associated with the Metzger engined GT cars.

Combined with the factory Porsche Sports Exhaust, hydraulic steering and six-speed manual gearbox, the driving experience is everything enthusiasts admire about the 997 generation analogue, involving and increasingly difficult to find in modern performance cars.

Beyond the mechanical specification, this example benefits from an exceptional Porsche Exclusive factory build. The timeless Seal Grey Metallic exterior is complemented by the factory Aerokit, original 19-inch Sport Design alloy wheels in their original two-tone finish, silver instrument dials and silver seat belts.

Inside, the rare full aluminium interior package extends across the dashboard, centre console, steering wheel and door trims, creating a bespoke and unmistakably special cabin environment. Further luxury and convenience are provided by the 18-way Adaptive Sports Seats with memory package, electric tilt-and-slide sunroof, PCM navigation, Bose Surround Sound System and Xenon headlights.

Factory Specification Highlights

X51 Powerkit 381bhp
Factory Aerokit
Six-Speed Manual Transmission
Porsche Sports Exhaust (PSE)
Seal Grey Metallic
19-Inch Sport Design Alloy Wheels
Original Factory Two-Tone Wheel Finish
Porsche Active Suspension Management (PASM)
Electric Tilt-and-Slide Sunroof
18-Way Adaptive Sports Seats
Memory Seat Package
Silver Instrument Dials
Silver Seat Belts
Full Aluminium Interior Package
Aluminium Dashboard Trim
Aluminium Centre Console
Aluminium Door Trims
Aluminium Steering Wheel Trim
PCM Navigation
Bose Surround Sound System
Xenon Headlights
Wide-Body Carrera 4S Body Shell
Permanent Four-Wheel Drive

Having covered just 66,500 miles from new and supported by a comprehensive main dealer and specialist service history including a recent service completed in May 2026, this exceptional example has clearly benefitted from careful ownership throughout its life.

With only five owners from new, complete factory originality and a specification seldom encountered on the open market, this represents a rare opportunity to acquire one of the finest and most desirable naturally aspirated 997.1 Carrera 4S models available today.

A truly exceptional Porsche 911 for the enthusiast, collector or discerning driver.