Just curious as to what piston a/c will haul a family of 4 plus luggage and do at least 200 kts cruise. I'm thinking: AC 685 PA31 Navajo C310 C340 PA46 Any others worth considering? Of those that can do the job, any thoughts on best for overall cost/value(acquisition, maintenance, insurance...etc)? This is a half pipe-dream half reality based question. Right now, I'm thinking 310 is the best overall value and utility (if you get a good one). The AC 685 is my personal favorite for pax comfort, but I fear that it may have the highest operating cost. FWIW, the 200 kts cruise requirement is a rough number I figured to make a Virginia to Arizona trip doable in one day. Thoughts?