Well, I most appreciated the reply of "Journey On," namely that the same reason you buy a C-Dory means you don't need overkill on the towing vehicle. YES, a gasoline engine, even a half ton pickup will do, given how little you say you will be towing. HOWEVER, my brother runs a heavy construction company, and his fleet manager told me to always have much more towing capacity that you technically need. He convinced me to buy a Ford F-350 diesel to tow my Ranger 25, which admittedly weighs more than a C-25. However, I can say that I now see his point:
namely, when you're in the mountains, when the weather is bad, when you are pulling out of a slimey boat ramp, whenever you really need the muscle----it's too late, then, to calculate the fuel mileage or the technical specs.......give me muscle. I love my 2008 F-350, and it handles the weight with no problem whatsoever. GO BIG, unless you want to shave it close. The call is yours.