i have really nice 1987 GN, factory moonroof with 77,000miles.That i sent to kirban performance in PA and had it allmost completly turned into a GNX..even a dash plate that says 022.here are a couple of things.gnx ladder bar suspension,shocks,exhaust.and Darrell Kirban did all the work.he also stripped the car down smoothed it out and put a serious paint job on this car,even the bottom of the car.i also have a set of original gnx wheels on it, i got off ebay a couple of yrs ago for 4k.i have had the car in my possesion for about 2 months in st.louis.i am asking 25k for the car..its the nicest CLONE i have seen..