George Patterson wrote:

Basically, get one with the 180hp engine (later than 1968).

Many have been upgraded through STC's... ie. 68's and beyond..

They're a tiny bit faster than a 160hp 172 and carry about 16 pounds
less. Better access, better visibility, and arguably prettier.

Just beware the flaps/wings when its on the ground, it seems to be at
eye level for most people, as it sits lower on the ground than a C172...

The 177RG is a whole other animal in some respects. Constant speed prop,
Cessna retracts, 200+hp on some...

Cardinals are very wide (44"), nice for plus sized peoples...