I have owned Porsches continually over a 30 year period - 2 of them 930's. The early 80's Euro spec Turbos (I owned a 1981) were VERY tricky to drive, and the turbo came on with brutal suddeness. The later 87 - 89 Turbos are much more refined in terms of turbo boost, and engine management, yet JUST as much fun to drive. People suggest that the 89 is the best year because it had the G50 (5 speed ) transmission. I wholeheartedly disagree with this, the 1988 with Porsches' square cut geared, 4 speed, is the pure RACING transmission designed by Porsche to handle 550 HP. It is extremely robust, and basically bullet-proof unless they are abused... The 3.3 litre Turbo has TREMENDOUS torque especially for such a light car, so the extra gearing of the G50 is not necessary. As for the G50: its' only benefit was the first gear syncro whose ratio is way too low - making it almost silly to use. It is not nearly as strong as the 4 speed, which by the way, Porsche continued to use in their racing EVEN after the introduction of the G50 - that tells the whole story I think. The turbos - if you get one that has been taken care of, will provide you with years of reliable driving. All 3 of my former Porsche 911/930's I sold for more than I purchased them for. There are VERY few cars that, like a good 911/930 do more than just hold their value - especially if you can acquire a well taken care of rare model.