I'm on key programming only since a short time, but find it really hard to have a good overview of which brands and within the brand, which cars can be done and which I should stay away from. The MaxiSys does the trick for quite a few cars but if there would be a good overview of which cars we have the support on, it would save me trouble on forehand when trying to get things done while it can't be.
I know USA has fewer brands so it's a bit easier. Europe is a region with loads of carmakers, models and even series so it's a real pain to go through the 'list' on the maxisys (even finding out which codes are used in the pdf takes forever).
In short; is there a list of which vehicles are supported with key programming.