I'd go with an 89, you can get it for under $1g. It handles like a dream(has 50/50 weight distribution) gives great mileage, looks great. Over all fun car to drive. And if you have the urge for a bit more power, you can do the sr20 swap for about $3g's! After that it might give your z a run for its money. By the way this has nothing to do with it being a nissan, and me having a bias, its just a great car.