I hate to sound like an idiot here, but I really don't know much specifically about the GN. I'm thinking about buying an '87, but before I do I would like to know all I can about them... factory options, performance specs, etc... I'm sure I can find all that by digging through posts here, but just curious if there is a website or book where I could find out all the info in one spot... and even if I don't buy one knowledge is always a good thing...