Produced from 1989 to 1991, the Porsche 928 GT was offered as a high-performance version of Porsche’s 928 grand touring car featuring a 326 HP 5.0-liter V8 engine mated to a 5-speed manual transaxle. This 1991 example was originally produced for the German home market and comes finished in Amazon Green Metallic over a light grey Leather to Sample interior. It is one of only 470 GTs built for markets outside of North America (RoW) for the model year and was reportedly used by the Porsche factory as an executive car before being sold to a private owner in Germany who was a friend of the Piech family. It was imported to the U.S. in 1998 by the same owner and was eventually acquired by the seller in 2016. Under the current ownership, this 928 underwent a motor rebuild including the installation of a custom 1.8L Eaton supercharger kit. It also received a rebuilt suspension, upgraded GTS brakes, an upgraded cooling system, and new Sport Seats with custom laser-etched Pascha inserts. This remarkable 928 GT is now being offered for auction out of Oklahoma with approximately 288k kilometers on the odometer.
The 928 GT came factory-finished in the rarely seen color Amazon Green Metallic (N7) and features a matching rear spoiler, an optional electric sunroof, a rear window wiper, clear Euro-spec turn signals, polished dual tailpipes, and upgraded red brake calipers sourced from a 928 GTS. It rides on custom 17” Phone Dial wheels by Augment Wheel Co. measuring 8.5” ET66 in front and 10.5” ET51 in the rear. The seller notes new Nitto NT555 G2 tires were mounted in 2023. The car is said to have been completely refinished under prior ownership in 2008, and the front bumper, hood, and fenders were refinished again in 2019 by the current owner to address road-going wear. Clear paint protection film has been applied to the hood, front bumper, and mirror covers. Some paint cracks are noted on the lower left front bumper as well as a small crack on the lower passenger side windshield. Detailed images are provided in the gallery along with a clean CARFAX report.
The cabin features light grey Leather to Sample upholstery and has been modified with a matching wood-trimmed 996 Turbo steering wheel and new custom Sport Seats with Porsche-crested headrests and laser-etched Pascha inserts along with a matching center console armrest. Accessories include power windows, mirrors, and door locks, 12-way power-adjustable front seats with memory settings, exclusive Rootwod wood trim on the doors and center console, an exclusive leather shift pattern insert, automatic climate control, custom Coco floor mats, and a Valentine 1 radar detector unit which is incorporated in the sunroof motor cover. The seller reports all gauges and accessories to be fully functional and notes the original seats and interior pieces are included in the sale.
The naturally aspirated 5.0-liter 32-valve V8 engine in the 928 GT was specially tuned from the factory to produce up to 326 HP and 317 lb.-ft of torque using a modified control unit and a more aggressive camshaft layout with altered timing profiles. The engine in this 928 has been rebuilt with new seals, belts, hoses, mounts, and a new water pump as well as a custom 1.8L Eaton supercharger and intercooler, custom fuel rails, a Sharktune, an upgraded fuel system, an upgraded cooling system, and an X-pipe exhaust system with a custom muffler. Power is sent to the rear wheels through a 5-speed manual transaxle featuring a custom Tilton twin-disc high-performance clutch, a custom Hans shifter, and upgraded torque tube bearings. Upgraded 928 GTS brakes have been installed and paired with braided stainless steel lines. The steering rack has been rebuilt and the suspension has been overhauled with new ball joints, tie rods, bushings, and Porsche sport shock absorbers. A comprehensive list of all services and upgrades performed by the current owner is provided in the gallery along with a numbers matching Porsche Certificate of Authenticity.
This sale will include owner’s manuals, a toolkit, a spare tire, an air pump, extensive documentation, and a clean title.
The seller would like you to know: “Hello all. This is a bittersweet auction for me as a massive amount of time and money has been invested into this car as I executed my vision for an ultimate GT. It has been a fun build over the last 7 years. This is a very unique and outstanding performing car that you will love! It comes with most of the original take-off parts if anyone wants to take it back to its original spec. I'm letting this one go as I still have several other special 928s that I'm focusing my attention on. Thanks and best of luck!”
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