My current dream machine is a 4 door, 4x4 TracKick with a 1.9 VW Turbo Diesel under the hood. The VW diesel is one of the most dependable, long-lasting engines made. Should get around 35 MPG or so. And it is a DIESEL

which means I can always run it on vegi oil, biodiesel, etc.
I'm currently building up a 1.6 VW diesel to swap into a 2 door TracKick as my economical trail buggy.