and while you are doing that go and check out: www.cardomain.com and get a free web page for your Opel as Opel's are clearly listed as a make (for a change).
There are Manta's, GT's and even Speedster listed there and you get a free all about your car home page where you can enlighten the unwashed non Opel owning heathens.
A forum community dedicated to Opel GT owners and enthusiasts. Come join the discussion about restorations, engine swaps, modifications, classifieds, troubleshooting, maintenance, and more!