Hey Michael - My 1978 is #924. I'm 6th owner and it is not original, but nice. Paint without stripes/stickers, different wheels, steering wheel, bumpers. I've seen up to #1501 for sale and understand approx. 2,500 gold and silver metallic limited editions were the last of the 1978 Series 1 production. They had numbered fender sticker, side pinstripes, luggage racks, and a few minor differences in interior; Limited seats have different side bolsters. Some parts on the final Series 1 are used on 1979 and later production. Yesterday I installed a new solid steel hood release cable for the front trunk that matches 1979-1988 cars.
Original literature with standard seats:
View attachment 9588
Reupholstered matching original sides:
View attachment 9590
1978 USA Limitee as found on poster:
View attachment 9591
Sail has X1/9 decal.
Search of XWeb with varying terms (limited, special series, series special, etc) will find old threads.
Had mine out today for library, post office, lunch, gas, and shopping.
Bill
View attachment 9593