Gas mileage for auto is rated at something like 22-30 mpg. Not the best mileage, but more than adequate in my opinion.
As for the legroom, I'm 6'3" and I ride with the seat all the way back. My knees are a little bent, but I don't feel crammed at all. I've never ridden with anyone behind me, so I'm not sure what it would be like if I had to slide the seat forward.
As for the legroom, I'm 6'3" and I ride with the seat all the way back. My knees are a little bent, but I don't feel crammed at all. I've never ridden with anyone behind me, so I'm not sure what it would be like if I had to slide the seat forward.