The problem with Tornado red, is that it has a certain pigment in the paint that had
very poor qualities that protected it from UV radiation from sunlight, one of the other VW reds from that era was Mars red, typically, this red does not have the same problem, because it doesnt share the defective tinter. The problem would start from day one of the new cars life, had the car been treated to a good quality wax, on a regular basis, the life of the paint would have been greatly extended... if you can find an origional Tornado red golf, that has not turned pink, then you have found an example that has been looked after, for longer
Other examples of that same deffective tinter, found their way onto other makes of cars, Toyota Bright red, Vauxhall/GM Flame red, and a few BMW shades,
To overcome the problem, the manufactuers started to "Basecoat" there "solid" colours, as well as the metallics. this then gave the red, a UV barrier of clear lacquer thats used by, as far as I know, all manufactuers to this day
If your car has gone pink, then the damage has been done, you can never, truely bring that colour back to life, you can only temporarily bring the paint back to colour,
The best way to restore your colour, is to wash your car with a good quality car shampoo, and leave it to dry, mask your trims, door handles, window rubbers etc.. and then start to machine compound the whole car, with a wet foam polishing mop head, and Farecla G3 compound
http://www.consumablesexpress.co.uk/acatalog/Online_Shop_FARECLA_AUTOMOTIVE_23.html?gclid=CIrPmv-_tIwCFQNQEgodhxTbSA (very messy job)
Once compunded, every trace of the compound MUST be removed! even if you have to wash the car a few more times, you must also remove ALL traces of compound from the polishing mop head, by washing in soapy water a few times.
The next process is to anti swirl polish you paint, 3Ms is one of the best, use the same process as compounding, once thats done, remove the excess, and your ready for waxing, use the very best you can afford! always apply wax to the body with a damp rag, old T shirt material is perfect for the job
If you can, always try and work out of sunlight.
The fadeing process never stops, all you can do is slow it down!
best of luck
Tom