[Bicycle Bob]

I wonder if opera glasses would help you extend the range. Anyway, it sounds as if your problem is more like a dragster than a top speed machine. You'd need miles to do the run without downforce, making that the dominant aero force. A sucker car would look tidy, at least and get off the line instantly. A wing based system would have the potential to fly high in the sky on just momentum if it didn't tumble, so it becomes more like an aircraft, upside down, with controls attached to wheels.