I used a Yacht for a while, and the fuel is a little easier to make and sometimes cheap but the problem is that it will be hard to find people selling the fuel, because hardly anyone has Yacht's (I think I was using the only one in Leo, maybe another 1 or two not sure).
It's mostly just for showing off, Steamship does the same job just as well and takes up less space.
Yacht takes up 5x4 spaces.