Piper's Cherokee Archer, which was fitted with the original straight "Mars Bar" wing was redesigned in 1974 with the semi-tapered wing developed for the Piper Warrior. Named the PA-28-181 Archer II and powered by a 180 hp Lycoming O-360, it had a small increase in speed performance. Production continued until 1994 with small improvements each year.
It's rare these days to find an Archer for sale but here is one. It will have a fresh Annual and ARC with sale.