There is not too much difference between the years, the only real problem the early ones had was the spark plugs would break when they were getting replaced. I think the problem was fixed in mid '07. Someone can correct me if I have the time wrong. You would be better off buying a GT that a V6 with a power adder I think. Tough to beat the sound of a V8 with a V6 from an Explorer. You will start off with standard ABS, traction control, a limited slip, better stock wheels, tires, suspension, etc. If you start out with the GT and want more power, there are a lot of options out there, if you start with a FI V6 then you don't have as much room for growth if you decide you want more power. There aren't too many people around here that stay stock for too long. Not sure what your budget is, but there are a lot of cars out there to pick from.