Piper introduced the Cherokee 140 in 1964 as a 140 hp version of the Cherokee 150, fitted with two seats for use as a trainer. In the following year, it was made available as the Cherokee 140-4 with two rear seats and the engine re-rated at 150 hp and a 200 lb gross weight increase. In either form, the Cherokee 140 makes an ideal personal aircraft.
Ive owned a share in this aircraft for a year. I love it because its my first and its a classic! I wish it had a tiny bit more power but hey its very cheap flying. Not sure I could co own and fly a 4 seater with heating for less!