It is a convoluted subject. There are different stories, all claiming to be "official".
One story:
Original factory cars (called first 914-6 RS by Porsche, later dubbed 914-6 GT) were only 33. These were exclusively used for racing by the factory. Then, in 1971 and 1972, 23 more cars were built with the official M471 package, mostly for customers, again intended for racing but many made it to street legal cars.
Another story:
46 "GT" cars were built by the factory, which included 11 M471 cars.
Almost 500 M471 packages were delivered to dealers and private customers to convert stock 914-6s to GT look-alikes. This was a "body and wheel package" which included steel flares, steel flared belly pan, fiberglass sills, rear wheel spacers and 6" forged Fuchs alloys.
The original factory cars had modified Carrera 6 (906) engines, while most "package" vehicles had the "T" option, which was the stock 2.0L , 110hp flat six from the old model 911T.
Many dealer conversions featured the 6" front and 7" rear wheels from the 1973 Carrera 2.7 RS and omitted the wheel spacers
This particular one is a dealer M471 with a 2.2L Weber-carb engine, 908 front brakes and front oil cooler. It has not been raced and has an early 90s restoration
In recent years, many, many 914s show up with GT looks. As there is no documentation by Porsche where the 480+ M471 packages were used, it is next to impossible to determine, if they are clones or "originals". In addition, clever "businessmen" convert 4 -cylinder cars to 914-6s and trying to pass these off as the more expensive version.
As only the Porsche-built 914-6 VINs will start with 914... and 914-4 do not, other clever guys sell 914 VIN tags with titles.
If you are trying to get into these cars without doing your homework, you will most likely fall victim to a scam artist.
